Homemade Study

Features of object oriented language

2021-12-24T13:58:00.001+05:30

Features of Object Oriented Programming Language (OOP)

The Programming language which has all the entities as object is called as Object Oriented Programming Programming Language.

There are following OOP languages till date:-

Java
C++
C#
Python
R
PHP
Visual Basic.NET
JavaScript
Ruby
Perl
SIMSCRIPT
Object Pascal
Objective-C
Dart
Swift
Scala
Kotlin
Common Lisp
MATLAB
Smalltalk.

Features:-

Polymorphism:

Polymorphism means having different forms, In other words polymorphism means the feature of a data to be used in more than one place. it is important features of Object Oriented Programming.

For Example:- if a person says "I Love Chicken fry" and "I love a Girl". In both the sentences the word "Love" is same for both sentences but the first word means he want to eat chicken, and the second word means he loves a girl .

It has two types.

Method Overloading
Method Overriding.

Inheritance:

The method of a creating a new class from an old class is called Inheritance.

Inheritance is the most important feature of OOP.

Sub Class: The class that inherits properties from another class is called Sub class or Derived Class.

Super Class: The class whose properties are inherited by sub class is called Base Class or Super class.

Encapsulation:

The process of binding data into single unit called class is said to be Encapsulation.

This is to prevent the access to the data directly.

The access to them is provided through the functions of the class.

It is one of the popular feature of Object Oriented Programming that helps in data hiding.

Abstraction: it is an essential feature of Object Oriented Programming in java

It is the Process hiding the unwanted data or feature while showing essential details.

To make a class abstract, we have to use abstract keyword with class’ name.

we can also declare an abstract method through which the class will be called as an Abstract class.

GTU-Sem-5_JAVA 3350703 Lab manual Solution

2021-08-30T12:14:00.003+05:30

_JAVA

3350703
Lab manual Solution

1: Write a Program in Java to generate first n prime numbers.

Answer:-

public class prime
{
    public static void main(String args[])
    {
        int x,y,c=0,n=10;
        for(x=2;x<n;x++)
        {
            if(x%2 !=0 || x==2)
            {
                for(y=2;y<=x/2;y++)
                {
                    if(x%y==0)
                    {
                        break;
                    }
                }
                if(y>x/2)
                {
                    System.out.println(x);
                    c++;
                }
            }
        }
        System.out.println("\n Total" + c); 
    }
}

OUTPUT:-

2
3
5
7

Total: 4

2: Write a Program in Java to generate first n prime numbers.

Answer:-

OUTPUT:-

Enter three integers

Maximum of three is: 4

3: Write a Program in Java to find second maximum of n numbers without using arrays.

Answer:-

OUTPUT:-

5 No.s:

n1=90000

n2=18000

n3=20000

n4=16000

n5=30000

Largest=90000

2nd Largest= 30000

4: Write a Program in Java to reverse the digits of a number using while loop.

Answer:-

OUTPUT:-

Please enter number to be reversed using Java program:

123

Reverse of number: 423 is 324

5: Write a Program in Java to convert number into words & print it.

Answer:-

OUTPUT:-

Output -1:

Enter the Value: 12515456

one crore twenty five lack fifteen thousand four hundred fifty six

Output -2:

Enter the Value: 54321

fifty four thousand three hundred twenty one

Output -3:

Enter the Value: 123

one hundred twenty three

6: Write a Program in Java to use Wrapper class of each primitive data types .

Answer:-

OUTPUT:-

Value of Wrapper objects (printing as objects )

Byte object g1: 2

Integer object m1: 50

Float object f1: 8.6f

Double object r1: 50.5

Unwrapped values (printing as data types)

byte value, bv: 2

int value, iv: 50

float value, fv: 8.6f

double value, dv: 50.5

OUTPUT:-

100 100

7: Write a Program in Java to multiply two matrix.

Answer:-

OUTPUT:-

Enter the number of rows and columns of first matrix

2 2

Enter the elements of first matrix

Enter the number of rows and columns of Second matrix

2 2

Enter the elements of second matrix

Product of entered matrices:-

6 6

8: Write a Static block which will be executed before main() method in a class.

Answer:-

OUTPUT:-

Print inside static block

First object

Print Print inside printmsg() method

Second object

Print Print inside printmsg() method

9: Write a program in Java to demonstrate use of this keyword. Check whether this can access the private members of the class or not.

Answer:-

OUTPUT:-

x= 4

y= 3

Is it possible to open Creo file any other software.if yes then what is saving extension for the same?

2021-08-17T06:41:00.000+05:30

Creo can open following type of files :-

Overview :-

Assignment-3 ASP.NET 3351603

2021-08-16T19:53:00.115+05:30

_ASP.NET

3351603
Assignment-3

1: List methods of Command object.

Answer:-

-The methods of Command object are given below :

1) ExecuteNonQuery() :-

-Data Manipulation tasks like Insert ,Update, Delete etc. are performed by this method.

-this method is written as command.ExecuteNonQuery();

-It returns Integer type value.

-In this Command object no of Rows affected.

2) ExecuteScalar() :-

-This method is very useful to use with Aggregate functions like (Sum, count, min, max, avg, etc.).

-This command object returns single cell.

3) ExecuteReader() :-

-This Command object is used to retrive a single value from Database after the SQL statement execution.

-To create SqlDataReader we can only use ExecuteReader method

2: What are return types of various methods of Command object?

Answer:-

-The ExecuteNonQuery() method returns an integer value.

-The ExecuteScalar() returns only single cell value.

and The ExecuteReader() returns a SqlDataReader, SqlDataReader is a forward-only, Read-only retrieval of query results from data source .

3: Write difference between DataSet and DataReader.

Answer:-

DataSet:-

-Dataset provides forward and backward access to data.

-Dataset is a disconnected architecture.

-We can do random access in Dataset.

-It is More expensive than DataReader because it stores multiple rows at the same time.

DataReader:-

-DataReader provides Forward-only and Read-only access to data.

-DataReader is a connected architecture.

we can do sequential access only in DataReader.

-It is less costly as it stores one Row at a time.

4: Write example ConnectionString for MS Access and SQL Server database connectivity (total 2 separate connection string).

Answer:-

MS Access Connection String :-

Protected Sub page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

Dim con As New OleDb.OleDbConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=D:\screen\anmol.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True")

Dim ad As New OleDb.OleDbDataAdapter("select * from studentdata", con)

Dim ds As New DataSet

con.Open()

ad.Fill(ds)

con.Close()

Gridview1.DataSource = ds.Tables(0)

Gridview1.DataBind()

End Sub

SQL Server Connection string:-

Protected Sub btn1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn1.Click

Dim con As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=D:\screen\anmol.mdf; Integrated Security=True;Connect Timeout=30;User Instance=True")

Dim ad As New SqlDataAdapter("select avg(marks) from studentdata", con)

Dim ds As New DataSet

con.Open()

ad.Fill(ds)

con.Close()

Gridview1.DataSource = ds.Tables(0)

Gridview1.DataBind()

End Sub

End Class

5: List methods and properties of Connection object.

Answer:-

-The methods of connection object and its properties are given below:-

Open:- The open method opens a connection to a database for executing commands against data Source.

Syntax:- object.Open();

Close:- The Close method is used to close a Connection object, to free the system Resources..

Syntax:- Object.Open();

6: Write sample code for displaying data in GridView control of student table.Answer:-Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html>
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
     
        <asp:GridView ID="GridView1" runat="server" CellPadding="4" 
                    ForeColor="#333333" GridLines="None">
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
            <EditRowStyle BackColor="#999999" />
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" 
                    ForeColor="White" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" 
                    ForeColor="White" />
            <PagerStyle BackColor="#284775" ForeColor="White"
                                           HorizontalAlign="Center" />
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" 
                    ForeColor="#333333" />
            <SortedAscendingCellStyle BackColor="#E9E7E2" />
            <SortedAscendingHeaderStyle BackColor="#506C8C" />
            <SortedDescendingCellStyle BackColor="#FFFDF8" />
            <SortedDescendingHeaderStyle BackColor="#6F8DAE" />
        </asp:GridView>
     
    </div>
    </form>
</body>
</html>

Default.aspx.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
public partial class _Default : System.Web.UI.Page
{
    SqlDataAdapter da = null;
    DataSet ds = null;
    SqlConnection cn = new SqlConnection(@"Data Source=.\sqlexpress;Initial 
            Catalog=Student;Integrated Security=True");
    protected void Page_Load(object sender, EventArgs e)
    {
 
        da = new SqlDataAdapter("Select * From Studenttable", cn);
        ds = new DataSet();
        da.Fill(ds, "Studenttable");
        GridView1.DataSource = ds.Tables["Studenttable"];
        GridView1.DataBind();
 
    }
}

7: Write sample code for inserting data in student table using command object.

Answer:-

Public Class insert

Inherits System.Web.UI.Page

Protected Sub btn1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn1.Click

Dim con As New OleDb.OleDbConnection("")

Dim cmd As New OleDb.OleDbCommand("insert into tablename values (1, 'anmol')", con)

con.Open()

cmd.ExecuteNonQuery()

con.Close()

Response.Write("inserted successfully")

End Sub

End Class

8: Write sample code for using average marks using executeScalar method.

Answer:-

-Public Class insert

Inherits System.Web.UI.Page

Protected Sub btn1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn1.Click

Dim con As New OleDb.OleDbConnection("")

Dim cmd As New OleDb.OleDbCommand("select avg(marks) from studentdata", con)

con.Open()

Response.Write(cmd.ExecuteScalar() & " is the avg marks of 5 subjects")

con.Close()

Response.Write("inserted successfully")

End Sub

End Class

9: Write sample code to read data from a customer table using DataReader object.

Answer:-

Public Class insert

Inherits System.Web.UI.Page

Protected Sub btn1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn1.Click

Dim con As New OleDb.OleDbConnection("")

Dim cmd As New OleDb.OleDbCommand("select avg(marks) from studentdata", con)

Dim dr As OleDb.OleDbDataReader

con.Open()

dr = cmd.ExecuteReader

While dr.Read

Response.Write(dr("cid") & dr("cstmrname") & dr("total") & "</br>")

End While

con.Close()

End Sub

End Class

10: Write sample code to show list of cities in a DropDownList using DataSet.

Answer:-

city.aspx

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="city.aspx.vb" Inherits="citydrop.city" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

Select Country<asp:DropDownList ID="Cty" runat="server" />

</div>

</form>

</body>

</html>

city.aspx.vb

Imports System.Data.SqlClient

Public Class city

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Dim con As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=D:\screen\anmol.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True")

Dim ad As New SqlDataAdapter("select * from ctable", con)

Dim ds As New DataSet

con.Open()

ad.Fill(ds)

con.Close()

Cty.DataSource = ds.Tables(0)

Cty.DataTextField = "cname"

Cty.DataValueField = "cid"

Cty.DataBind()

End Sub

End Class

Practical-12 || ASP.NET || Develop a web page to implement the concept of state management using Session and Application

2021-08-02T14:37:00.002+05:30

Practical-12

_ASP.NET

Practical-12: Develop a web page to implement the concept of state management using

Session and Application

Home.aspx:-

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Home.aspx.vb"

Inherits="Practical12ApplicationSession.Home" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

</div>

</form>

</body>

</html>

Login.aspx:-

<%@ Page Language="vb" AutoEventWireup="false"

CodeBehind="Login.aspx.vb"

Inherits="Practical12ApplicationSession.Login" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

<tr>

<td>

User Id</td>

<td>

<asp:TextBox ID="txtUsername"runat="server"></asp:TextBox>

</td>

<td>

</td>

</tr>

<tr>

<td>

Passcode</td>

<td>

<asp:TextBox ID="txtPassword" runat="server"TextMode="Password"></asp:TextBox>

</td>

<td>

</td>

</tr>

<tr>

<td>

</td>

<td>

<asp:Button ID="btnLogin" runat="server"Text="Login" />

</td>

<td>

</td>

</tr>

</table>

</div>

</form>

</body>

</html>

Home.aspx.vb:-

Public Class Home

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Response.Write("Welcome : " & Session.Item("username"))

Response.Write("<br/>Last logged in user : " &

Application.Item("username"))

End Sub

End Class

Login.aspx.vb:-

Public Class Login

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

End Sub

Protected Sub btnLogin_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnLogin.Click

Session.Item("username") = txtUsername.Text

Application.Item("username") = txtUsername.Text

Response.Redirect("Home.aspx")

End Sub

End Class

Output Screenshot:-

Second User Log in:-

First user homepage after refreshing:-

ASP.NET pr-14 || Create a web application using Global.asax file which will count the number of visitors on web page.

2021-08-02T07:54:00.000+05:30

Practical-15

_ASP.NET

Practical-14
Create a web application using Global.asax file which will count the number of visitors on web page.

OnlineVisitorCntPage.aspx:-

<%@ Page Language="vb" AutoEventWireup="false"CodeBehind="OnlineVisitorCntPage.aspx.vb"

Inherits="GlobalPract.OnlineVisitorCntPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

</div>

</form>

</body>

</html>

OnlineVisitorCntPage.aspx.vb:-

Public Class OnlineVisitorCntPage

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Session.Timeout = 1

Response.Write("Online :" & Application.Item("oCnt"))

Response.Write("Visitors :" & Application.Item("vCnt"))

End Sub

End Class

Web.config:-

Imports System.Web.SessionState

Public Class Global_asax

Inherits System.Web.HttpApplication

Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)

' Fires when the application is started

Application.Item("vCnt") = 0

Application.Item("oCnt") = 0

End Sub

Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)

' Fires when the session is started

Application.Item("vCnt") =

Convert.ToInt16(Application.Item("vCnt")) + 1

Application.Item("oCnt") =

Convert.ToInt16(Application.Item("oCnt")) + 1

End Sub

Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)

' Fires at the beginning of each request

End Sub

Sub Application_AuthenticateRequest(ByVal sender As Object, ByVal ByValue As EventArgs)

' Fires upon attempting to authenticate the use

End Sub

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)

' Fires when an error occurs

End Sub

Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)

' Fires when the session ends

Application.Item("oCnt") =

Convert.ToInt16(Application.Item("oCnt")) - 1

End Sub

Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)

' Fires when the application ends

End Sub

End Class

Output Screenshot:-

JAVA Write a program in Java to find maximum of three numbers using conditional operator

2021-07-31T09:04:00.001+05:30

JAVA

Write a program in Java to find maximum of three numbers using conditional operator

import java.util.Scanner;
class LargestOfThreeNumbers
{
    public static void main(String args[])
    {
        int x, y, z, max;
        System.uot.println("Enter three integers");
        Scanner in = new Scanner(System.in);
        x= in.nextInt();
        y= in.nextInt();
        z= in.nextInt();
        max = x> y ? (x>z?x:z) : (y>z?y:z);
        System.out.println("Maximum of three is:"+max);
    }
}

practical-15 || ASP.NET || Use various tags in Web.config file for ASP.NET configuration.

2021-07-31T07:46:00.004+05:30

Practical-15

_ASP.NET

AIM: Use various tags in Web.config file for ASP.NET configuration

Webform1.aspx

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="pr15.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

</div>

<asp:Button ID="Button1" runat="server" Text="Test Stupid URL!!!" />

</form>

</body>

</html>

Webform1.aspx.vb

Public Class WebForm1

Inherits System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Response.Write("Version : " &

ConfigurationManager.AppSettings("version") & "<br/>")

Response.Write("Connection string : " &

ConfigurationManager.ConnectionStrings("myConStr").ConnectionString)

End Sub

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click

MsgBox("Get Ready to go to a page which doesnt exist!!", MsgBoxStyle.Exclamation)

Response.Redirect("fasdfasdfsadfasdfasdfsadf.aspx")

End Sub

End Class

Web.config

<?xml version="1.0"?>

<!--

For more information on how to configure your ASP.NET application, please visit

http://go.microsoft.com/fwlink/?LinkId=169433

-->

<system.web>

<compilation debug="true" strict="false" explicit="true"

targetFramework="4.0" />

<customErrors mode="On" defaultRedirect="error.html"

redirectMode="ResponseRedirect">

</customErrors>

</system.web>

<add name="myConStr"

connectionString="Provider=Microsoft.ACE.OLEDB.12.0;Data

Source=E:\Access-2010-B1\PCResale Customer Database.accdb"/>

</connectionStrings>

</appSettings>

</configuration>

Output:--

Assignment-2 ASP.NET

2021-07-27T21:35:00.002+05:30

_ASP.NET

3351603
Assignment-2

1: What is use of Web.config file in ASP.NET?

Answer:-

-Web.config is a file which allows you to define the configuration settings at the time of developing the application or at the time of deployment or even after deployment.

Brief Points about Web.config is given below:

-Web.config files are stored in XML format which makes us easier to work with.

-You can have any number of Web.config file an application. Each Web.config applies settings to its own directory, and all the child directories below it.

All the Web.config files inherits the root Web.config file available at the following location:

Systemroot/Microsoft.Net/Framework/VersionNumber/CONFIG/Web.config .

The changes in Web.config don't require the reboot of the web server.

It is a XML based configuration file used to manage various settings that concerned with configuration of website.

If Web.config is placed in the root directory it will affect your entire site.

2: Write Code for online and visitor count of a website using Global.asax.

Answer:-

Global.asax.vb

Home.asax.vb

3: Explain difference between Cookies and Session with code.

Answer:-

Cookies:-

Cookies is a small file created in user's browser, while Session is a state management technique which stores the value on the server.

The basic and main difference between cookies and session is that cookies are stored in user's browser but session can't.

A cookies can keep all the information in the client's browser until deleted.

if a user has a login and password, it can be set as cookie in their browsers so next time they do not have to re-login. you can store anything in a browser cookie.

Example code for Cookie.

Sessions are not reliant on the User allowing a cookie. They work like a token in the browser which allowing access and passing information while the user has opened his browser.

Problem with session is that when you close the browser the session will end automatically.

Example Code for Session.

4: Explain Hiddenfield and viewstate with code in brief.

Answer:-

-Hiddenfield is a control provided by ASP.net which is used to store small amount of data on the client.

it is not rendered to the client and it is invisible on the browser.

it is a Client-side State Management Technique.

Code:-

Viewstate:-

Sometimes the user need to store data temporarily after a post back the viewstate is preferred.

It stores data in generated HTML using Hiddenfield not on the server.

IT provides page level state management.

Example:-

5: Explain how Google uses QueryString in his search in short.

Answer:-

-The format of QueryString is name=value.

The most Common Google Search URL string looks like:-

http://www.google.com/search?q="%s" , where "%s" is served as a placeholder for query yo come.

Most searched Parameters can be affixed to this string simply by adding '&' after the basic string, followed by desired parameter.

information communication network | CISCO PRACTICAL-1

2021-07-22T09:51:00.001+05:30

_CISCO PRACTICAL-1

Java Programming (3350703) Assignment -3

2021-07-11T13:03:00.004+05:30

_Java Programming

(3350703)

Assignment -3

1. Write a short note on class in java with example.

answer:-

A class is declared using class class keyword.

A class contain both data and code that operate on that data.

The data or variable defined within a class are called instance variables and the code that operates on this data is known as methods.

A class describes objects that has common properties.

A class in java contains:

-Data Member
-Method
-Constructor

Example:-

public class Student
{
    private int rollno;
    private int marks;
    private String name;
    public void run()
    {
        //Run method implementation 
    }
}

2. Write two steps to create an object.

answer:-
There are three steps to create an object.
1) Declaration
2) Instantiation
3) Initialization
Instantiation:-
The new keyword is used to create the object.
Syntax is :- ClassName objName = new ClassName();
Instantiation mean to call the constructor of a class that creates an object of the type of that class.
Initialization:- Using a call to a constructor. this call initializes the new object.
The new operator is followed by a call to a constructor, which initializes the new object.

3. Explain Access control rules of Java with example.

answer:-

Accessing control is the process of controlling visibility of a variable or method.

Each object has member which can be declared to have specific access.

Java has 4 level and 3 access modifiers.

Access levels are listed below in the least to most restrictive order.

Public:- Public members are available anywhere outside the class.

Protected:- Accessible by subclases and form classes of same package.

Default:- Accessible only by classes in the same package.

Private:- Strictly controlled, which means they cannot be accessed by anywhere outside the enclosing class.

4. Explain this keyword with example.

answer:-

"this" keyword is used to refer to current object.

"this" keyword is always a reference to the object on which method was invoked.

"this" keyword can be used to invoke current class constructor.

"this" keyword can be passed as an argument to another method.

Example:-

Student.java

public class Student
{
    static 
   {
        int rollno;
        Student(int rollno)
        {
            this.rollno = rollno;
        }
        public static void main(String[] args)
        {
            Student s1=new Student(34);
            system.out.println(s1.rollno);
        }
   }

5. Explain static variable, method and block in java.

answer:-

Static variable:-

Instance variables declared as static are, essentially, global variables.

When objects of its class are declared, no copy of a static variable is created.

Data stored in static variables is common for all the objects of that class.

Static Method:-

Static Methods can access class variables without using object of the class.

It can access non-static methods and non-static variables by using objects.

Static methods can be accessed directly in static and non-static methods.

Static Block:-

Static Block gets executed when the class is loaded in the memory.

A class can have multiple Static Blocks, which will execute in the same sequence in which they have been written into the program.

Static block is a set of statements, which will be executed by the JVM before execution of main method.

6. Explain final variable, method and class in java.

answer:-

Final keyword is used to make data, method or class as final.

it means it can not be modified further in the program.

final at variable level:-

Final keyword is used to make a variable as a constant.

A variable declared with the final keyword cannot be modified by the program after initialization.

final at method level:-

It makes a method final, means sub classes can not override this method.

The compiler checks and gives an error if you try to override the method.

final at class level:-

It makes a class final, meaning that the class can not be inheriting by other class.

When we want to restrict inheritance then make class as a final.

7. Explain method overloading with example.

answer:-
If two or more methods in a class has same name but different parameters, it is known as method overloading.
Method overloading is a type of polymorphism.
If two or more method have same name and same parameter list but differs in return type are not said to be overloaded method.
Example:-
class Adder
{
    static int add(int a,int b){return a+b;}
    static int add(int a,int b,int c){return a+b+c;}
}
class Student
{
    public static void main(String[] args)
    {
        system.out.println(Adder.add(11,11));
        system.out.println(Adder.add(11,11,11));
    }
}

8. What is constructor? Write its properties. List different types of constructor.

answer:-

A constructor initializes an object when it is created.
It has the same name as its class and do not have any return type.
All classes have constructors, whether you define one or not, because Java automatically provides a default constructor that initializes all member variables to zero.
However, once you define your own constructor, the default constructor is no longer used.
A constructor is used to initialize a new object.
Constructor is automatically called immediately when the object is created using "new" key-word.
Constructors are not methods, they aren't inherited.
There are Three Types Of Constructors:-

-Default Constructor
-Parameterized Constructor
-Copy Constructor

9. Explain default constructor with example.

answer:-
If you don't define any constructor in class, Java will generate a constructor by default
which is called as Default Constructor.
Example:-
Student.java
class StudentDemo
{
    int rollno;
    StudentDemo()
   {
    system.out.println("I an a default constructor");
    rollno=10;
    marks=100;
    system.out.println("value of rollno is :"+rollno);
    system.out.println("value of marks is: "+marks);
    }
};
class Student
{
    public static void main(String[] args)
    {
        StudentDemo s=new StudentDemo ();
    }
}

10. Explain parameterized constructor with example.

answer:-
The constructors with arguments is known as parameterized constructor.
Example:-
Student.java

public class Student
{}
    public Student (String str)
    {
        System.out.println("Hello:" + str);
    }
};

Student2.java

public class Student2
{
    public static void main(String[] args)
    {
        Student s1 = new Student("Students");
    }
};

11. Explain copy constructor with example.

answer:-
There are many ways to copy the values of one object into another. They are:
-By constructor
-By assigning the values of one object into another
-By clone () method of Object class
A copy constructor is used to initialize an object from another object, Copy constructor takes object as argument.
Example:
Student.java
class Student
{
    int rollno;
    String name;
    Student(int i,String n)
    {
        rollno = i;
        name = n;
    }
    Student(Student s)
    {
        rollno s.rollno;
        name =s.name;
    }
    void display (System.out.println(rollno+" "+name);}
    public static void main(String args[])
    {
        Student s1 = new Student(61,"Krunal");
        Student s2 = new Student(s1); //Copy Constructor invoked
        s1.display();
        $2.display();
    }
}

12. What is constructor overloading? Demonstrate with example.

answer:-

Constructors can also be overloaded.

Overloaded constructor are differentiated on the basis of their type of parameters or number of parameters.

Whereas in Constructor overloading you have multiple constructor with different signature but only difference is that constructor doesn't have return type in java .

Example:

class Student1
{
    String name;
    int rollno;
    Student1()
    {
        name = "";
        rollno = 0;
    }
    Student1 (String n, int a)
    {
        name = n;
        rollno = a;
    }
    Student1 (Student1 s1)
    {
        name=s1.name;
        rollno=s1.rollno;
    }
    public String toString()
    {   
        return "this is " + name + " of "+rollno;
    }
}
class Student
{
    public static void main (String[] args)
    {
        Student1 s1= new Student1(0);
        Student1 s2 = new Student1 ("parth", 32);
        Student1 s3 = new Studentl (s2);
        System.out.println(s2); 
        System.out.println(s3);
        s1.name = "Virat";
        s1.rollno = 23;
        System.out.println(s1);
    }
}

13. How an object can be passed as parameter?

answer:-
We can also pass object as a parameter to method in Java programming.
We learn Passing object as parameter conepts by below example:
Example of Passing Object as Parameter
Student.java
class Student Demo
{
    int rollno;
    Student Demo(int i)
    {
        rollno = i;
    }
    boolean equals (StudentDemo s)
    {

        if (rollno == s.rollno)
        return true;
        else
        return false;
    }
}
public class Student
{
    public static void main(String args[])
    {
        Student Demo s1 = new StudentDemo(10);
        Student Demo s2 = new StudentDemo(10);
        StudentDemo s3 = new StudentDemo(20);
        System.out.println("s1 == $2:"+s1.equals($2));
        System.out.println("s1 == s3:"+s1.equals(s3));
    }
}

14. Write a program in JAVA that implements a class with instance variable and method as class member.

answer:-

15. Write a program in JAVA that implements the class Box with attributes length, width, height and calculate the volume of the Box using class method.

answer:-

16. Write a program in JAVA that implements the class Box with attributes length, width, height and method setdata to assign the value to these attributes and also calculate the volume of the Box using class method volume.

answer:-

public class Box {
    double h,w,d;

     Box(double width,double height,double depth)
    {
        h=height;
        w=width;
        d=depth;
    }
    double volume()
    { double v;
    v=h*w*d;
    return v;
    }
   
    public static void main(String[] args) {
       
    Box bc = new Box(8.5,80.3,9.6);
    System.out.println(bc.volume());

    }

}

Java Programming (3350703) Assignment -2

2021-07-07T20:45:00.002+05:30

_Java Programming

(3350703)

Assignment -2

1. Explain Primitive data types in java.

answer:-

There are eight type of primitive data types.

byte:-

it is a signed data type of size 8 bits.

It has a range from -128 to 127.

This is smallest integer type.

short:-

short is a signed data type of size 16 bits.

It has range from -32,768 to 32,767.

int:-

int is a signed data type of size 32 bits.

it has a range from -2147483648 to 2147483647.

long:-

long is a signed data type of size 64 bits.

It has a range from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.

float:-

it is 32 bits in size.

float specifies a single-precision value.

It has a range from 1.4e+045 to 3.4e+038.

example :- float f1=12.3434f;

double:-

it is 64 bit in size.

example :- double d1= 212.3232;

char:-

In Java, the data type used to store characters is char.

char data type is of size 16 bits.

The range of char is 0 to 65536.

boolean:-

boolean is an of size 1 bit.

boolean is a simple type, called, for logical values.

it has only two possible values true and false.

2. Explain User defined data types in java.

answer:-

User defined data types are arrays, classes and interfaces.

Array type:-

In Java, array is a user defined data type because it implicitly extends java. lang.Object.

An array contains value called elements.

Array allows the user to store the values of the same type in contiguous memory allocations.

All elements of an array must contain same type of value.

Class type:-

Java is an object-oriented programming language, where the class is treated as a type in java program.

Interface type:-

In order to support multiple inheritance feature in java, we have an of reference data type or mechanism called interface.

3. Explain different types of literals in java.

answer:-

It's a value of a variable such as 123, -456, 3-14, 'a', "Hello", it can be of any Java data types.

Literals provide a means of expressing specific values in your program

~Boolean Literals

~Character Literals

~Integer Literals

~Floating Point Literals

~String Literals

~null Literals

4. Explain constant in java.

answer:-

Constants are declared with keyword final.

Their values cannot be changed during execution.

For example :

final double PI = 3.1415926;

5. Explain scope of variables in Java.

answer:-

The scope of a variable defines the section of the code in which the variable is visible.

you can declare variable in several different places:

A member variable is a member of a class or an object. A member variable's scope is the entire declaration of the class.

The local variable is declared within a block of code. In general, the scope of a local variable is the block in which it was declared.

Parameters are used to pass value into methods. The scope of a parameter is the entire method.

Exception-handler parameter are arguments to an exception handler. Its scope is the code block between { and } that follows a catch statement.

6. What is type conversion & casting?

answer:-

There are two type of Type-Conversion in Java:

1)Implicit type-conversion

2)Explicit type-casting

Implicit Type conversion:-

Implicit type-conversion is performed by compiler automatically.

There is no loss of precision.

For example

int=3;
double=f;
f=i;

Explicit type-casting:-

Type-casting forces an explicit conversion of the type of a value.

Type-Casting is an operation which takes one operand, it operates on its operand, and returns an equivalent value in the specified type.

Syntax:- newvalue=(typecast)value;

7. Describe JAVA selection statement with example.

answer:-

Selection statements allows the program to choose different paths of execution based upon the outcome of an conditional expression or the state of a variable.

There are two Selection statement in Java. if and switch.

The if else Statement:-

Syntax:-

if(Boolean_expression)

{
//execute if the boolean expression is true
}

else

{
//execute if the boolean expression is false
}

The Switch Statement:-

Syntax:-

switch(expression)

{

case value:

//statements

break;

case value:

//statements

break;

default:

//statements

}

8. List the types of operators available in Java. Explain arithmetic and Bitwise operators.

answer:-

The types of Operator is given below:

Unary

Arithmetic

Shift

Relational

Bitwise

Logical

Ternary

Assignment

Arithmetic :- Arithmetic operators are used in mathematical expressions in the same way that they are used in algebra.

The arithmetic operator are

(+) addition

(-) Subtraction

(*) Multiplication

(/) Division

(%) Modulus

(++) Increment

(--)Decrement

Bitwise:- Java defines several bitwise operators, which can be applied to the integer types, long, int, short, char, and byte.

Bitwise operator works on bits and perform bit by bit operation.

The Bitwise operators are :

(&) AND

( | ) OR

(^) XOR

(~) bitwise compliment

(<<) left shift

(>>) right shift

(>>>) zero fill right shift

9. Give difference between string and string buffer class, explain any three methods of both string & string buffer class.

answer:-

string:-

String class is immutable string object.

String is slow and consumes more memory

String class is used to create string object.

string buffer class:-

String Buffer class is mutable string object.

String Buffer is fast and consumes less memory.

String class is used to create mutable string object.

String methods:-

Length():-

This method is used to get the length of a string:

Example:-

char Name[ ]={'H','E','L'.'L'.'O'};

string strName = new String(Name);

System.out.println(strName.length());

charAt():-

This method returns the character at a specific index in string.

Syntax :-- char charAt(int index)

getChars():-

To extract more than one characters from a string.

Syntax:-

void getChars (int start, int end, char target[], int tstart);

String Buffer methods:-

replace():-

This method replaces the string from specified start index to the end index.

Capacity():-

This method returns the current capacity of StringBuffer object.

reverse():-

This method reverse the characters within a StringBuffer object.

10. What is wrapper class? Explain all conversion which occurs with wrapper class.

answer:-

The class which "wrap" the primitive data type into an object of that class is called as Wrapper Class.

we can not use the primitive data type as objects directly so we use wrapper class to wrap the primitive data types into objects.

boolean	Boolean
char	Character
byte	Byte
short	Short
int	Integer
long	Long
float	Float
double	Double

11. Explain any four string function in JAVA with example.

answer:-

Length():-

This method is used to get the length of a string:

Example:-

char Name[ ]={'H','E','L'.'L'.'O'};

string strName = new String(Name);

System.out.println(strName.length());

replace():-

This method replaces the string from specified start index to the end index.

Example:-

StringBuffer str = new StringBuffer("Hello World");

str.replace(6, 11, "java:);

System.out.println(str);

charAt():-

This method returns the character at a specific index in string.

Syntax :-- char charAt(int index)

Example:-

{

String s="Indian";

System.out.println(s.charAt(0));

System.out.println(s.charAt(3));

}

concat():- Appends a string to the end of another string.

Example:-

string s = "Hello";

string str = "Java";

string str2 = s.concat(str);

String str1 = "Hello".concat("Java");

12. List seven method of string class. Explain all of them with examples.

answer:-

Length():-

This method is used to get the length of a string:

Example:-

char Name[ ]={'H','E','L'.'L'.'O'};

string strName = new String(Name);

System.out.println(strName.length());

replace():-

This method replaces the string from specified start index to the end index.

Example:-

StringBuffer str = new StringBuffer("Hello World");

str.replace(6, 11, "java:);

System.out.println(str);

charAt():-

This method returns the character at a specific index in string.

Syntax :-- char charAt(int index)

Example:-

{

String s="Indian";

System.out.println(s.charAt(0));

System.out.println(s.charAt(3));

}

concat():- Appends a string to the end of another string.

Example:-

string s = "Hello";

string str = "Java";

string str2 = s.concat(str);

String str1 = "Hello".concat("Java");

copyValueOf():- Returns a String that represents the characters of the character array.

Example:-

str1 = str1.copyValueOf(data);

System.out.println("str1 after copy: " + str1);

Capacity():-

This method returns the current capacity of StringBuffer object.

Example:-

StringBuffer str = new StringBuffer();

System.out.println(str.capacity());

reverse():-

This method reverse the characters within a StringBuffer object.

Example:-

StringBuffer str = new StringBuffer("Hello");

str.reverse();

System.out.println(str);

//olleh

13. Explain Garbage Collection and finalize() method.

answer:-

Garbage collection is a process of reclaiming the runtime unused memory automatically.

In other words, it is a way to destroy unused objects.

In Java, the programmer need not to care for objects which are no longer in use.

Garbage collector destroy these objects, but it is not guaranteed that it run at any specific time, it runs on low priority.

Finalize() method:-

The finalize method is invoked each time before the object is garbage collected.

This method can be used to perform cleanup processing.

This method is defined in object Class as: protected void finalize(){}

14. List and explain types of array (Rectangular and Non Rectangular type) with example.

answer:-

There are two types of array 1) single dimensional array 2)multidimensional array

Rectangular array:-

Rectangular arrays are, as the name implies, arrays which look like a table. A 2D rectangular array can be represented as a plane rectangle, and a 3D rectangular array can be represented as a cuboid. [4] Whatever the case, the idea is the same – in rectangular arrays, every row has the same number of columns

public class TwoDimArrayDemo
{
public static void main (String []args)
    {
int twoDim [][]=new int [2][3];
twoDIm=[0][0]=1;
twoDIm=[0][1]=2;
twoDIm=[0][2]=3;
twoDIm=[1][0]=4;
twoDIm=[1][1]=5;
twoDIm=[1][2]=6;
System.out.println(twoDim[0][0] + " " + twoDim[0][1]+ " " + twoDim[0][2]);
System.out.println(twoDim[1][0] + " " + twoDim[1][1]+ " " + twoDim[1][2]);
    }

}

Non-Rectangular Array:- A nonrectangular array is an array in which each row of the array may have a different number of columns.

class Main {
    public static void main(String[] args)
    {
        int arr[][] = new int[2][];
        arr[0] = new int[3];
        arr[1] = new int[2];
        int count = 0;
        for (int i = 0; i < arr.length; i++)
            for (int j = 0; j < arr[i].length; j++)
                arr[i][j] = count++;

        System.out.println("Contents of 2D Jagged Array");
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++)
                System.out.print(arr[i][j] + " ");
            System.out.println();
        }
    }
}

15. Distinguish between break and continue statements in Java.

answer:-

Break:-

The break statement is used to terminate the loop.

we can use break with switch statement.

It stops the execution of loop.

Continue:-

The continue statement is used to skip the current iteration.

we cannot use continue with switch statement.

It does not stop the execution of the loop.

16. Write a program to sort an array of five Strings.

answer:- 
import java.util.Arrays;
 
public class SortExample
{
    public static void main(String[] args)
    {
        // Our arr contains 8 elements
        int[] arr = {13, 7, 6, 45, 21};
 
        Arrays.sort(arr);
 
        System.out.printf("Modified arr[] : %s",
                          Arrays.toString(arr));
    }
}

17. Write a Java Program to sort array of 5 integer numbers in ascending order.

answer:-

public class SortAsc 
{    
    public static void main(String[] args)
     {      
        int [] arr = new int [] {5, 2, 8, 7, 1};     
        int temp = 0;    
        System.out.println("Elements of original array: ");    
        for (int i = 0; i < arr.length; i++)
            {     
              System.out.print(arr[i] + " ");    
            }     
        for (int i = 0; i < arr.length; i++) 
            {     
            for (int j = i+1; j < arr.length; j++) 
               {     
               if(arr[i] > arr[j]) 
                    {    
                   temp = arr[i];    
                   arr[i] = arr[j];    
                   arr[j] = temp;    
                    }     
              }     
            }    
        System.out.println();      
        System.out.println("Elements of array sorted in ascending order: ");    
        for (int i = 0; i < arr.length; i++) {     
            System.out.print(arr[i] + " ");    
        }    
    }    
}    

JAVA assignment-1 Introduction to JAVA

2021-07-07T14:25:00.006+05:30

_Introduction to Java

3350703

Assignment-1

1: Explain Following terms:(i)Platform Independent (ii) Byte Code (iii) Applet (v) JVM (iv) JRE

Answer:-

-Platform Independent:

Platform Independent refers to independent of any OS, java compiler generates a platform independent code.

-Byte Code

Java compiler generates a platform independent code called Byte Code.

-Applet

Applets are used to provide interactive features to web applications and can be executed by browsers for multiple platforms.

-JVM

Java Virtual Machine is a program that runs pre compiled Java programs, which mean JVM executes .class files and produces output.

-JRE

JRE executes Java Programs. JRE is required to execute pre-compiled Java Programs.

b

2. Explain different features of Java.

Answer:-

Simple:-

Java is a simple language and is Easy to write and read.

Object Oriented:-

Java is a pure object oriented programming every entity in java is object.

Distributed:-

Java has networking facilities, so, it allows the Object to access information across the network between multiple machines.

Platform Independent:-

Platform independent refers to independent refers of any OS, java compiler generates a platform independent code.

Architecture neutral:-

Architecture neutral refers to hardware independent or format of this system independent binary code.

Multithreaded:-

It means that handling more than one job at a time, threads are light weight process.

Dynamic:-

Java is a dynamic language, it is capable of linking dynamic new classes, methods and objects during runtime.

Portable:-

The Byte code generated by java compiler can be used on any machine, so java is portable.

High Performance:-

The use of Byte code makes the performance high.

Robust:-

Robust means strong, where it checks the reliability of the code before execution.

Secure:-

Java does not use memory pointers explicitly.

Java use the encryption systems for applications to secure them on internet.

Interpreted:-

Generally, computer languages are either compiled or interpreted. But Java combines both compiler and Interpreted.

3. Explain different OOP concepts.

Answer:-

-Encapsulation:-

It is a process of wrapping of data and methods in a single unit.

it is achieved in Java language by class concept.

The main advantage of using encapsulation is to secure the data from other methods.

-Inheritance:-

The process by which one object can use properties of another object is called inheritance.

Inheritance has feature in which we can reuse the code and hence it avoids to writing the same code again and again.

-Polymorphism:-

Polymorphism is the ability of an object to change its behavior according to how it is being used.

There are two types of Polymorphism 1) Compile time Polymorphism 2) Runtime Polymorphism.

-Abstraction:-

Abstraction separates specification from implementation of class.

It refers to act of representing essential features without including the background details.

4. Explain basic structure of Java programs.

Answer:-

The Java Programs involves :-

Document section:-this section is used to write a comments. Comments are useful to programmers because they help them understand the code.

Package statement:-You can create a package with any name. A package is a group of classes that are defined by a name.

example:- package package_name;

Import Statement:-You can use a class of another package by importing it directly into your program.

example:- import calc.add;

Interface Statement:-Interfaces are like a class that includes a group of method declarations.

Class definition:-Classes are the main and essential elements of any Java program.

main method class:- Every Java program requires the main method as the starting point of the program. There may be many classes in a Java program, and only one class defines the main method.

5. Describe JVM (Java Virtual Machine).

Answer:-

JVM is a platform-independent execution environment that converts Java byte code into machine language and executes it.

The JVM is called "virtual Machine" because it provides a machine interface that does not depend on the underlying operating system and hardware architecture.

This independence supports the write-once run-anywhere concept of java programs.

Java Virtual Machine is a program that runs pre compiled Java programs, which mean JVM executes .class files and produces output.

JVM handles following main tasks..

Code Loading, Byte Code Verification, Execution, Provided runtime environment.

6. Describe main() method in Java.

Answer:-

The main() is the starting point for JVM to start execution of java program.

syntax of java program is :--

public static main(String args[])

where Public is access specifier.

static is a keyword.

void is a return type.

main() is the method name.

String args[] is a array of string type which accepts group of strings, which is called string array.

->>if we write main() method without String args[] then the program will compile but not run.

7. Explain why JAVA is known as platform independent language?

Answer:-

Java is platform independent because it does not depend on any type of platform.

Java programs are compiles into byte code and the byte code is platform-independent.

This Byte code can be interpreted on any system which has java Virtual Machine installed. This is why java is Portable Language.

8. Write differences between Java and C++.

Answer:-

Java:-

Java does not support pointer unions and operator overloading and structure.

It support garbage collection.

It supports inheritance except multiple inheritance.

Java is interpreted.

Java does not supports Destructor.

C++:-

C++ supports pointer, unions, operator overloading and structure.

It does not supports garbage collection.

It supports inheritance including multiple inheritance.

C++ is compiled.

C++ supports Destructor.

ASP.NET practical-8

2021-07-07T11:25:00.014+05:30

_ASP.NET

PRACTICAL-8

AIM:-Create a web page using the concept of Theme & Skin in ASP.NET

.aspx code:-

<%@ Page Theme="Theme" Language="vb" AutoEventWireup="false" 
CodeBehind="WebForm1.aspx.vb" Inherits="Practical_8.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    
        <br />
    
    </div>
    <asp:TextBox ID="TextBox2" runat="server">
        
    </asp:TextBox>
    <br />
   
    <asp:RadioButton ID="RadioButton1" GroupName="bool" runat="server" />
<asp:RadioButton ID="RadioButton2" GroupName="bool" runat="server" />
    <br />
    <br />
    <asp:Button ID="Button1" runat="server" Text="Button" />
    </form>
</body>
</html>

.skin code:-

<asp:TextBox runat="server" BackColor="Green" ForeColor="White"/>

<asp:RadioButton runat="server" BackColor="Green" ForeColor="Cyan"/>

<asp:Button runat="server" BackColor="Green" ForeColor="White"/>

Figure 1

ASP.NET Practical-7

2021-07-07T11:18:00.004+05:30

_ASP.NET

PRACTICAL-7

AIM:-Create a web page using the concept of cascading style sheets in ASP.NET

.aspx code

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb"
 Inherits="WebApplication3.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <link rel="Stylesheet" type="text/css" href="StyleSheet1.css" />
    <style type="text/css">
        h1
        {
            color:Green;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <input type="text" style="background-color:Purple; border:2px solid red;"
         placeholdre="inline CSS" />
        <h1>Inernal CSS</h1>
    </div>
    </form>
</body>
</html>

.CSS code

body 
{
    background:Gray;
}
div
{
        background:Maroon;
}

Output:--

ASP.NET practical-6

2021-07-07T11:11:00.010+05:30

_ASP.NET

PRACTICAL-6

AIM: Create a Simple calculator with validations and details.

.aspx code

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="Practical_6.WebForm1" %>

    <!DOCTYPE html
        PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml">

    <head runat="server">
        <title></title>
    </head>

    <body>
        <form id="form1" runat="server">
            <div>

                <asp:TextBox ID="txtA" runat="server"></asp:TextBox>

                <asp:RequiredFieldValidator ID="rqr1" runat="server" ControlToValidate="txtA" ErrorMessage="Enter A"
                    ForeColor="Red" />

                <asp:RangeValidator ID="rng1" runat="server" ControlToValidate="txtA" Type="Double" MinimumValue="0.0"
                    MaximumValue="65536.0" ErrorMessage="Invalid value" ForeColor="Red" />

                <asp:TextBox ID="txtB" runat="server"></asp:TextBox>

                <asp:RequiredFieldValidator ID="rqr2" runat="server" ControlToValidate="txtB" ErrorMessage="Enter B"
                    ForeColor="Red" />

                <asp:RangeValidator ID="RangeValidator1" runat="server" ControlToValidate="txtB" Type="Double"
                    MinimumValue="0.0" MaximumValue="65536.0" ErrorMessage="InvalidB" ForeColor="Red" />

                <asp:DropDownList ID="drpOp" runat="server">
                    <asp:ListItem>+</asp:ListItem>

                    <asp:ListItem>-</asp:ListItem>

                    <asp:ListItem>*</asp:ListItem>

                    <asp:ListItem>/</asp:ListItem>

                    <asp:ListItem>%</asp:ListItem>
                </asp:DropDownList>
                <asp:Button ID="Button2" runat="server" Text="Calculate" />
                <asp:Label ID="lblAnswer" runat="server"></asp:Label>

            </div>
        </form>
    </body>

    </html>

.aspx.vb code:-

Public Class WebForm1
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button2.Click

        If CInt(txtB.Text) = 0 Then

            Response.Write("Cannot divide by 0")

        ElseIf drpOp.Text = "+" Then

            lblAnswer.Text = CDbl(txtA.Text) + CDbl(txtB.Text)

        ElseIf drpOp.Text = "-" Then

            lblAnswer.Text = txtA.Text - txtB.Text

        ElseIf drpOp.Text = "*" Then

            lblAnswer.Text = txtA.Text * txtB.Text

        ElseIf drpOp.Text = "/" Then

            lblAnswer.Text = txtA.Text / txtB.Text

        ElseIf drpOp.Text = "%" Then

            lblAnswer.Text = txtA.Text Mod txtB.Text

        End If
    End Sub 
End Class

Output:-

ASP.NET Practical-4 &5

2021-07-07T10:17:00.010+05:30

_ASP.NET

PRACTICAL-4&5

AIM: Design a web form to allow user to enter following details in his Resume using Web Server Controls. Set validations using properties. When data is submitted it must be viewed in the panel below the form. Fields of Resume are First Name, Surname, Gender, Address, City, Pin code, Phone, Qualification (Diploma, Bachelor, Master), Specialization subject, Percentage.

Code aspx:-

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="form1.aspx.vb" Inherits="Sem5pract04.WebForm1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Project 04 </title>
    </head>
<body>
    <form id="form1" runat="server">
        <div>
            <table>
                <tr>
                    <td>First Name:-</td>
                    <td>
                        <asp:TextBox ID="textbfirstn" required="required" MaxLength="17" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Surname:-</td>
                    <td>
                        <asp:TextBox ID="textbSurname" MaxLength="17" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Gender:-</td>
                    <td>
                        <asp:RadioButton ID="radiobmale" GroupName="Gender" runat="server" Text="Male"/>
                        <asp:RadioButton ID="radiobfemale" GroupName="Gender" runat="server" Text="Female"/>
                        <asp:RadioButton ID="radiobtrans" GroupName="Gender" runat="server" Text="Transgender"/>
                    </td>
                </tr>
                <tr>
                    <td>Address:-</td>
                    <td>
                        <asp:TextBox ID="textbaddress" MaxLength="70" runat="server" TextMode="MultiLine" />
                    </td>
                    
                </tr>
                <tr>
                    <td>City:-</td>
                    <td>
                        <asp:DropDownList ID="dropcity" runat="server">
                            <asp:ListItem>Gandhinagar</asp:ListItem>
                            <asp:ListItem>Ahmedabad</asp:ListItem>
                            <asp:ListItem>Mehsana</asp:ListItem>
                            <asp:ListItem>Surat</asp:ListItem>
                        </asp:DropDownList>
                    </td>
                    
                </tr>
                <tr>
                    <td>Pincode:-</td>
                    <td>
                        <asp:TextBox ID="textbpicode" MaxLength="6" MinLength="6" runat="server" TextMode="Number" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Phone:-</td>
                    <td>
                        <asp:TextBox ID="Textbphone" MaxLength="11" MinLength="10" runat="server" TextMode="Phone"/>
                    </td>
                   
                </tr>
                <tr>
                    <td>Qualification:-</td>
                    <td>
                        <asp:RadioButton ID="Radiobqualidip" GroupName="Qua" 
                        Text="Diploma" runat="server" />
                        <asp:RadioButton ID="Radiobqualibach" GroupName="Qua" 
                        Text="Bachelor" runat="server" />
                        <asp:RadioButton ID="Radiobqualimas" GroupName="Qua" 
                        Text="Master" runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>Specializtion Subject:-</td>
                    <td>
                        <asp:TextBox ID="TextbSpeciSub" MaxLength="20"
                         runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>Percentage</td>
                    <td>
                        <asp:TextBox ID="Textbpercentage" MaxLength="5" 
                        runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>

                    </td>
                    <td>
                        <asp:Button ID="btnSub" runat="server" Text="Submit" />
                    </td>
                </tr>
            </table>
            

            
        </div>
        <asp:Panel ID="Panel1" runat="server" Visible="false">
            <table>
                <tr>
                    <td>First Name:-</td>
                    <td>
                        <asp:Label ID="Labelfn" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Surname:-</td>
                    <td>
                        <asp:Label ID="LabelSurname" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Gender:-</td>
                    <td>
                        <asp:Label ID="LabelGender" runat="server" />
                    </td>
                </tr>
                <tr>
                    <td>Address:-</td>
                    <td>
                        <asp:Label ID="LabelAddress" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>City:-</td>
                    <td>
                        <asp:Label ID="LabelCity" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Pincode:-</td>
                    <td>
                        <asp:Label ID="LabelPincode" runat="server" />
                    </td>
                    
                </tr>
                <tr>
                    <td>Phone:-</td>
                    <td>
                        <asp:Label ID="LabelPhone" runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>Qualification:-</td>
                    <td>
                        <asp:Label ID="LabelQualification" runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>Specializtion Subject:-</td>
                    <td>
                        <asp:Label ID="LabelSpecSub" runat="server" />
                    </td>
                   
                </tr>
                <tr>
                    <td>Percentage</td>
                    <td>
                        <asp:Label ID="LabelPercentage" runat="server" />
                    </td>
                   
                </tr>
            </table>
        </asp:Panel>
    </form>
</body>
</html>

Code aspx.vb:-

Public Class WebForm1
    Inherits System.Web.UI.Page
    
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub btnSub_Click(sender As Object, e As EventArgs) Handles btnSub.Click
        Panel1.Visible = True
        Labelfn.Text = textbfirstn.Text
        LabelSurname.Text = textbSurname.Text
        If radiobmale.Checked = True Then
            LabelGender.Text = "Male"
        Else
            LabelGender.Text = "Female"
        End If
        LabelAddress.Text = textbaddress.Text
        LabelCity.Text = dropcity.Text
        LabelPincode.Text = textbpicode.Text
        LabelPhone.Text = Textbphone.Text
        If Radiobqualidip.Checked = True Then
            LabelQualification.Text = "Diploma"
        ElseIf Radiobqualibach.Checked = True Then
            LabelQualification.Text = "Bachelor"
        Else
            LabelQualification.Text = "Master"
        End If
        LabelSpecSub.Text = TextbSpeciSub.Text
        LabelPercentage.Text = Textbpercentage.Text
    End Sub
End Class

Output:-

Figure 1:

PRACTICALS 05

Create a web form where user enters following marks.

ASP.NET, JAVA, ISS, Project (All out of 100). When user submits the marks, numeric value validation must be done. On entering marks, the grade should be displayed in message box .

% > 90 and <<=100 AA
> 80 and <<=90 AB
> 70 and <<=80 BB
> 60 and <<=67 BC
>50 and <<=60 CC
>40 and <= 50 DD
Else Fail
AIM:

Code.aspx: -

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" 
    Inherits="Sem5Pract05.WebForm1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Practical 05</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>

            <table style="width:100%;">
                <tr>
                    <td>ASP.Net</td>
                    <td>
                        <asp:TextBox ID="Textbaspnet" runat="server"/>
                    </td>
                    <td>
                        <asp:Label ID="Labelapsnet" runat="server"/>
                    </td>
                </tr>
                <tr>
                    <td>Java</td>
                    <td>
                        <asp:TextBox ID="Textbjava" runat="server"/>
                    </td>
                    <td>
                        <asp:Label ID="Labeljava" runat="server"/>
                    </td>
                </tr>
                <tr>
                    <td>ICN</td>
                    <td>
                        <asp:TextBox ID="TextbICN" runat="server"/>
                    </td>
                    <td>
                        <asp:Label ID="LabelICN" runat="server"/>
                    </td>
                </tr>
                <tr>
                    <td>ENS</td>
                    <td>
                        <asp:TextBox ID="TextbENS" runat="server"/>
                    </td>
                    <td>
                        <asp:Label ID="LabelENS" runat="server"/>
                    </td>
                </tr>
                <tr>
                    <td>Project</td>
                    <td>
                        <asp:TextBox ID="Textbproject" runat="server"/>
                    </td>
                    <td>
                        <asp:Label ID="LabelProject" runat="server"/>
                    </td>
                </tr>
                <tr>
                    <td></td>
                    <td>
                        <asp:Button ID="Button" runat="server" Text="Grades" 
                        style="height: 29px" />
                    </td>
                    <td></td>
                </tr>

            </table>

        </div>
    </form>
</body>
</html>

Code aspx.vb: -

Public Class WebForm1
    Inherits System.Web.UI.Page
    Protected Sub Button_Click(sender As Object, e As EventArgs) Handles Button.Click
        Labelapsnet.Text = callinggrade(Textbaspnet.Text)
        Labeljava.Text = callinggrade(Textbjava.Text)
        LabelICN.Text = callinggrade(TextbICN.Text)
        LabelENS.Text = callinggrade(TextbENS.Text)
        LabelProject.Text = callinggrade(Textbproject.Text)
    End Sub
    Private Function callinggrade(ByVal txt As String) As String
        Dim grade As String
        If txt > 90 And txt <= 100 Then
            grade = "AA"
        ElseIf txt > 80 And txt <= 90 Then
            grade = "AB"
        ElseIf txt > 70 And txt <= 80 Then
            grade = "BB"
        ElseIf txt > 60 And txt <= 70 Then
            grade = "BC"
        ElseIf txt > 50 And txt <= 100 Then
            grade = "CC"
        ElseIf txt > 40 And txt <= 50 Then
            grade = "DD"
        Else
            grade = "Fail"
        End If
        Return grade
    End Function

End Class

Output:-

Figure : 1

Figure :2

Assignment-1 ASP.NET

2021-07-05T17:52:00.007+05:30

_ASP.NET

3351603
Assignment-1

1: What is Theme? How Themes work?

Answer:-

-You can create your own theme for your own look.

-Themes are made up of a set of elements: skins, cascading style sheets, images, and other resources.

-Themes are defined in special directories in your web site or on your web server.

-Themes are a way to counter the problems faced when creating a layout for server controls and giving

them the same look and feel with a little effort as possible.

-Default or global themes are contained in a special folder inside the framework.

-The essential parts of the themes are skin files with the .skin extension.\

-Beside a skin files, a theme can be composed of style sheet .css files as well as images for added for

support for a layout if the website.

In Visual web developer you can create themes at the machine level that can be used in multiple applications on the server.

Themes can be applied by using either the Theme or StyleSheetTheme attribute of the @ Page directive, or by setting the pages Element in the application configuration file.

2: List out validation controls in ASP.Net.

Answer:-

-RequiredFieldValidator Control

-CompareValidator Control

-RangeValidator Control

RegularExpressionValidator Control

CustomValidator Control

ValidationSummary Control

3: Explain Master Page.

Answer:-

Master page can be defined as a consistent layout for all your pages in your application.

A single page defines the look and feel that you want for all of the pages in your application.

You can then create individual content pages that contain the content you want to display.

When users request the content pages, they merge with the master page to produce output that combines the layout of the master pages with the content from the content page.

Basically it consist of two pieces, master page itself and one or more content pages.

4: What is CSS? Explain style sheet syntax & rules.

Answer:-

CSS is a simple design language intended to simplify the process of making web pages presentable.

CSS handles the look and feel part of a web page.

Using CSS, you can control the color of the text, the style of fonts, the spacing between paragraphs, how columns are sized and laid out, what background images or color used, as well as a variety of other effects

CSS is combined with the markup languages HTML and XHTML.

RULES:-

1)The rules can be defined in an individual element using style property of element/tag.

2)The rules can be written inside the elements/tags<style> ...</style>.

3)The rules can be written in separate file with an extension .css and this file can be linked to any web page.

SYNTAX:-

style may be applied to any HTML element, from <A> to <VAR>.

5: Explain all validators in brief.

Answer:-

-RequiredFieldValidator Control:-

This is the simplest and most used control from validation control series.

This control makes sure that the required field is entered by the user.

For making a control mandatory we just need to tie a RequirementFieldValidator to that control.

Leading and trailing spaces of the input value are removed before validation.

-CompareValidator Control:-

This control is used to compare the value entered in one control with another value.

If the input control value is empty then no validation will take place and will return Is Valid true for this validator. If it's a mandatory field then add a RequiredFieldValidator also to that input control.

-RangeValidator Control:-

The Range Validator server control is similar to the Compare Validator server control.

This control is used to check that the user enters an input value that falls between two values.

It is possible to check range within numbers, dates, and characters.

RegularExpressionValidator Control:-

This control check the user's input based on a pattern defined by a regular expression.

This validation control is very helpful when checking email address, phone number, zip code, minimum password complexity etc.

CustomValidator Control:-

The CustomerValidator server control enables you to develop your own custom server-side or client-side validations.

At times, you may want to compare the user's input to a value in a database, or to determine weather his input conforms to some arithmetic validation that you are looking for.

ValidationSummary Control:-

The Validation Summary control allows you to summarize the error messages from all validation controls on a web page in a single location.

The summary can be displayed as a list, a bulleted list, or a single paragraph, based on the value of the DisplayMode property.

6: Explain Regular Expression Validator.

Answer:-RegularExpressionValidator Control:-

This control check the user's input based on a pattern defined by a regular expression.

This validation control is very helpful when checking email address, phone number, zip code, minimum password complexity etc.

7: Explain Custom Validator with code.

Answer:-

The CustomerValidator server control enables you to develop your own custom server-side or client-side validations.

At times, you may want to compare the user's input to a value in a database, or to determine weather his input conforms to some arithmetic validation that you are looking for.

Two unique properties and one unique event handler are associated with CustomValidator. They are

--ClientValidationFunction

--ValidateEmptyText

8: What is use of validation summary.

Answer:-

The error message displayed in this control is specified by the ErrorMessage property of each validation control.

If the ErrorMessage property of the validation control is not set, no error message is displayed for that validation control.

The unique properties that offered by ValidationSummay control are follows:

1)Display Mode

2)HeaderText

3)ShowMessageBox

4)ShowSummary

9: How Nested Master page is different than Master page?

Answer:-

{if you have better answer of this question than this , you can suggest me at anmol.code 😊}

Master page defines the look and feel and standard behavior that you want for all of the pages in you application, while in Nested master page it allow you to create componentized master pages. for example, a large site might contain an overall master page that defines the look of the site.

In Master page there is two component one master page itself and another content page but in

Nested master page there is parent master pages and child master pages.

10: Explain RadioButtonList and CheckBoxList with code.

Answer:-

RadioButtonList:-

RadioButtonList derives from a base ListControl, and therefore works much like the ListBox, DropDownList, Bulleted List, and CheckBox list Web server controls.

Code:-

RadioButtonList.aspx

<%@ page Title ="RadioButtonList" Language="C#" CodeBehind="RadioButtonList.aspx.cs" Inherits="Web_Server_Controls.RadioButtonList" %>

<html>

<body>

Select your discipline:</br>

<asp:RadioButtonList id="radiolist1" runat="server">

<asp:ListItem selected="true">Civil Engineering</asp: ListItem>

<asp:ListItem selected="true">Electrical Engineering</asp: ListItem>

<asp:ListItem selected="true">Electronics and Communication </asp: ListItem>

<asp:ListItem selected="true">Computer Engineering</asp: ListItem>

<asp:ListItem selected="true">Information Technology</asp: ListItem>

<asp:ListItem selected="true">Mechanical Engineering</asp: ListItem>

<asp:RadioButtonList>

</br>

<asp:Button id="Button1" Text="SUBMIT" Onclick="submit" runat="server"/>

</form>

</body>

</html>

RadioButtonList.aspx.cs

using system;

using system.Collections.Generic;

using system.Linq;

using system.Web;

using system.Web.UI;

using system.Web.UI.WebControls;

namespace Web_Server_Controls

{

public partial class RadioButtonList : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void submit(object sender, EventArgs e)

{

Label1.Text="You select" - radiolist1.SelectedItem.Text;

}

CheckBoxList:-

The CheckBoxList control is a better choice if we want to create a series of check boxes from data in database.

Code:-

CheckList.aspx

<%@ page Title="CheckBoxList" Language="C#"

CodeBehind="CheckList.aspx.cs"

Inherits="Web_Server_Controls.checklist" %>

<html>

<body>

Known Languages"<br/>

<asp:ListItem>Bengali</asp:ListItem>

<asp:ListItem>english</asp:ListItem>

<asp:ListItem>hindi</asp:ListItem>

<asp:ListItem>kannada</asp:ListItem>

<asp:ListItem>marathi</asp:ListItem>

<asp:ListItem>gujarati</asp:ListItem>

<asp:CheckBoxList><br/>

<asp:label id="lb" runat="server"/>

</form>

</body>

</html>

CheckList.aspx.cs

using system;

using system.Collections.Generic;

using system.Linq;

using system.Web;

using system.Web.UI;

using system.Web.UI.WebControls;

namespace Web_Server_Controls

{

public partial class CheckList : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Check(object sender, EventArgs e)

{

int i;

lb.Text="<p>Selected Language(s):</p>";

for(i=0;i<=Check1.Items.Count-1;i++)

{

if (Check1.Items[i].Selected==true)

{

lb.Text += check1.Item[i].Text + ",";

}

11: Differentiate LinkButton and Hyperlink with code.

Answer:-

LinkButton:-

Renders as a hyperlink in the page. However it contains client-side script that causes the form to be posted back to the server.

Code:-

LinkButton.aspx

<%@ Page Title="LinkButton" Language="C#"

CodeBehind="LinkButton.aspx.cs"

Inherits="Web_Server_Controls.LinkButton" %>

<html>

<body>

<asp:LinkButton ID="LinkButton1" Text="Click me!"

OnClick="lblClick" runat="server" />

</form>

</body>

</html>

LinkButton.aspx.cs

using system;

using system.Collections.Generic;

using system.Linq;

using system.Web;

using system.Web.UI;

using system.Web.UI.WebControls;

namespace Web_Server_Controls

{

public partial class LinkButton : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void lblClick(object sender, EventArgs e)

{

Label1.Text="You clicked the LinkButton control";

}

HyperLink:-

The HyperLink Web server control creates links on Web page that allows users to move from page to page in your application.

Code:-

HyperLink.aspx

<%@ Page Title="HyperLink" Language="C#"

CodeBehind="HyperLink.aspx.cs"

Inherits="Web_Server_Controls.HyperLink" %>

<html>

<body>

<asp:HyperLink ID="HyperLink1"

ImageUrl="../image/bbit.png"

NavigatUrl="http://www.bbit.ac.in" Text ="Visit BBIT!"

Target="_Blank" runat="server"/>

</form>

</body>

</html>

Hyperlink.aspx.cs:-

no coding required

Assignment_chapter-1 Advances in information communication Networks

2021-07-02T07:26:00.003+05:30

_Information Communication Networks

3351601
Assignment #chap-1

1: Explain amplitude shift keying in detail with diagram.

Answer:-

-It is a form of modulation that represent digital data as variation in the amplitude of carrier wave.

-Amplitude of an analog carrier signal changes accordingly with modulation signal. But frequency and phase remains constant.

-The level of amplitude can be defined by binary 1 and 0, like ON-OFF key .

-In final modulation signal, bit 0 is represented by absence of carrier and bit 1 is represented by presence of carrier.

-Peak amplitude of signal during each bit is constant, depends on 1 and 0 bit of modulating signal.

2: Explain FSK in detail with diagram.

Answer:-

-Frequency of carrier signal varied according to amplitude of message signal.

-It is a modulation technique in which digital data is transmitted through different frequency changes of carrier signal.

-Frequency is constant during each bit duration.

-Amplitude and phase is constant during whole signal.

Basic FSK is called as Binary FSK where Bit 1 and 0 are called as Mark frequency and space frequency respectively.

3: Explain phase shift keying in detail with diagram.

Answer:-

-In PSK phase of carrier signal changes according to bit stream of digital modulating signal.

-Phase of signal is changed for representing bit 1 and 0.

-During one bit duration phase remains constant. As bit changes phase is also changes.

-Frequency of carrier signal and peak amplitude both remains constant.

-When Signal starts with phase of 0°, it is represented as binary 0. and when it changes the phase value by 180° it is represented as binary 1.

-Hence phase are seperated by shifts of 180°.

4: Draw ASK, FSK, and PSK waveform for digital stream '11011001'.

Answer:-

5: What is linear digital modulation? Explain QPSK and OQPSK with comparison.

Answer:-

-In Linear digital modulation amplitude of carrier signal varies linearly with modulating digital signal.

-Due to bandwidth efficient of linear technique it is very useful in wireless communication.

-Most Popular linear modulation techniques are :- QPSK, OQPSK and π/4 QPSK .

-QPSK:-maximum phase shift is limited to about 90°.

-OQPSK:-maximum phase shift is about +/- 90°.

-The only difference between QPSK and OQPSK is that, I and Q are shifted such that the alignment of these two baseband waveform is offset by T.

6: Explain QAM with neat diagram.

Answer:-

-QAM is combination of PSK and ASK.

-PSK has limitation to make a small phase difference. This limits its potential bit rate.

-So instead of one characteristics, we shuffling two characteristics but not frequency.

-Although, no of amplitude changes are fewer than no of phase changes because ASK is more noise susceptible.

7: Explain coding methods for digital transmission.

Answer:-

-It is the method to represent digital data into digital signal. for example you send dat from computer to printer.

-There are three method for represent digital data into digital signal:-

1)Unipolar # 2)Polar# 3)Bipolar#

Unipolar:-It is very simple encoding method uses only one voltage.

1 is represented by high voltage.

0 is represented by zero voltage.

Polar:-This method uses two voltage levels.

Positive voltage for high (1)

Negative voltage for low (0)

Bipolar:- This method uses three voltage levels.

1)positive 2)negative 3)Zero

-Bit 0 is represented by zero level, bit 1 is represented by alternate positive or negative level.

8: what do you meant by digital transmission code? Draw NRZ, RZ, and Bipolar waveforms for data stream '1100001111001'.

Answer:-

-It is the method to represent digital data into digital signal.

9: Short Note:- Advantages, Disadvantages and application of wireless communication.

Answer:-

-Advantage:-

Main feature is mobility and flexibility.

-Neat and easily installation no cable running here and there.

-Because of its wireless nature, there is no cost of cabling infrastructure.

-We can add or remove devices from our system without any disruption to the rest of the system.

-Disadvantage:-

-major problem is limited radio spectrum available for communication.

-More security is needed to secure data and bandwidth.

-Relatively lower bandwidth speed as user increases.

-Application:-

-It is used in security systems, television remote control, represented by zero wi-fi, cell phone, wireless power transfer and various wireless communication based systems.

10: Define:- (1)Spectrum efficiency (2)wireless communication (3)shift keying .

Answer:-

-Spectrum efficiency:-The data transmitted with a minimum transmission error over a given spectrum or bandwidth

-Wireless communication:-The communication in which we don't require physical media and any cable infrastructure is said to be wireless communication.

-Shift keying:-During modulation, modification occurs in amplitude, frequency, and phase, this modification is called as shift keying.

11: Define (1)bit interval (2)bit rate (3) baud rate (4) symbol rate.

Answer:-

-Bit interval:-The time required to send one single bit is called as Bit interval.

-Bit rate:-The number of bits transmitted during one second (bps) is called as bit rate.

-Baud rate:- The no of signals to represent those bits transmitted during one second is called as Baud rate.

-Symbol rate:-The bit rate divided by the number of bits that can be transmitted with each symbol is called as symbol rate.

Practical-6 Design activity diagram for the system

2021-05-30T19:15:00.000+05:30

Practical-6

Design activity diagram for the system
This is an activity diagram of “resume maker project”

l Write a short note on components of activity diagrams.

ans->

-The basic purpose of activity diagram is similar to other four diagram.

-It caption the diagram dynamic behaviour of the system.

-Other four diagram are used to show the message flow from one object to another but activity diagram to another.

-visualizing the diagram nature if a system but the are also used to constraint the executable system by using forward and reverse engineering techniques.

-The activity diagram in the message part.

-Activity diagram are normally employed in business process modelling.

-This is carried out during the initial stages of requirements analysis and specification.

-Activity diagram can be very useful to understand complex processing activities involving many components.

Draw activity diagram for your system.

This is an activity diagram of resume maker project

l Differentiate between flow chart and activity diagram.

ans->

-The main difference between activity-diagram and flow chart is that an activity diagram is that an activity diagram is a behavior diagram that represents the work how to stepwise activity of the system.

-while a flowchart is a graphical representation that represents the sequence of steps to solve a problem.

Practical-4 Design DFD (level 0 and 1) for a system

2021-05-24T20:56:00.000+05:30

_Practical-4

Design DFD (level 0 and 1) for a system

l Explain DFD symbols in brief.

ans->

-External entity:

-it is also known as sources if they are external to the system and provide data to the system.

-If they are external to the system and receive information from system then called as sinks

-It can be people, department, other companies etc.

-Processes:

-it must have at least one input and at least one output.

-A process receives input and generate some output.

-Data Stores:

-it can be online or “hard copy “.

-It is labeled with a noun (like customer etc.).

-A data store is where a process stores data between processes for later retrieval by that same process or another one.

-Data flows:

-it must originate from and/or lead to a process.

It can go from process to process, but that does imply that no data is stored at that point.

-It can have one arrowhead indicating the direction in which the data flowing.

DFD Level 0 diagram of RESUME GENERATOR SYSTEM

DFD Level 1 diagram of RESUME GENERATOR SYSTEM

l Write advantages and disadvantages of DFD .

ans->

-Advantages:

-it aids in describing the boundaries of system.

-It is beneficial for communicating existing system.

-A straightforward graphical technique which is easy to recognize.

-DFDs can provide a detailed representation of system components.

-It is used as a part of system document file.

-Disadvantages:

-It makes the programmer little confusing concerning the system.

-Physical considerations are left out.

It simply take long time to create.

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Assignment-3 Fundamentals of software development

2021-04-30T11:44:00.003+05:30

_Fundamental of Software Development

_Assignment-3

click here to download word file

Assignment-4 Fundamental of Software Development

2021-04-30T10:44:00.002+05:30

_assignment-4
Fundamental of software development

1) Explain Code walkthrough.

=>> A walkthrough is a term describing the review process at an abstract level.

It is an informal code analysis technique.

The first approach walkthrough is well defined by Yourdon. The term is often used in the software industry to describe the process of inspecting algorithms and source code to find out logical error (after eliminating syntax error) by following paths through the algorithms or code as determined by input conditions.

The purpose of such code walkthroughs is generally to provide assurance of the fitness for purpose of the algorithm or code; and occasionally assess the output of an individual or team.

2) Explain code inspection

=>>

It is verification approach that can be applied to coding for detecting faults Once the code is written for a module, it is first verified before it is used by other Inspection was started for detecting faults in code, and was later applied for design, requirements etc Code inspection is usually held after code has been compiled and other tools are applied The results are usually compared to specified requirements and standards for determining whether the coding approach is in line with requirements.

Code inspection team includes the programmers, designers and testers Inspection requires more preparation for the review participants. So it tends be very expensive as it uses time of many people. Benefits include a more systematic review of the software and a more controlled and less stressed meeting.

3) what is code inspection? how it differs from code walkthrough? list out some common errors which can be checked during code inspection?

=>>

There are many variations of inspections, but all includes some form of a checklist that guides the preparation of review participants. Inspections for the work product are also characterized by precise entry and exit requirements.

Another noticeable thing is that an inspection process is involves the collections of the data that can be used to feedback on the quality of the development and review processes as well as influence future validation techniques on the software.

4)Explain what kind of purposes can be served by good software documentation? Also, specify main difference between internal documentation and external documentation
=>

Communication is classified into two categories: written and oral. Document is written type of communication. It ranges from code analysis to functional specifications, user manuals and project plans.

The documentation section describes each of the work products produced as part of the software process. These include:

Project documents

Models

Technical documents

User documents

Internal documentation is written in a program as comments while External documentation is written in a place where people who need to use the software can read about how to use the software.

5)write short node on unit testing.

=>>

This is the first level of testing called Unit testing. Initially tests focus on each component individually, ensuring that it functions properly as an independent unit In this, different modules are tested individually Unit testing is essentially for the verification of the code produced during the coding phase. So, its main goal is to test the internal logic of the modules. And this is done by programmer.

One purpose of testing is to find as many as errors in the software and remove it.

6) Explain white box testing in brief.

Out of two approach of testing, white box testing is concerned with testing the implementation of program. The intent of this testing is not to exercise all the different input and output condition but to exercise the different internal programming structure and data structure used in program. That's why it is also called structural testing. It is also known as glass box testing. Using white box testing, tester can derive test cases that,

Guarantee that all independent paths within a module have been exercised

at least once Exercise all decision whether it is true or false.

Execute all paths within their bounds and their boundaries. Exercise internal data structure to ensure their validity.

7) Differenciate black box testing and white box testing.

=>>

Black box testing:-

it can be done by software testers

it is not necessary to have knowledge of implementation.

it is reffered as external testing of software

it is known as functional test of software

White Box testing:-

it can be done by software developers

here knowledge of implementation is required

it is reffered as internal testing of software

it is known as structural test of software.

8) Explain Test documentation.

=>>

Test documentation is the fundamental element which describes any try out or experimental activities to the proper test level. Even if the way of testing is good, if it not documented it is worthless. It is test plan and related evidence of testing which including reading simple inputs from a file and writing test cases to file.

A documentation generated at the end of testing is the test summary report. This report normally covers each subsystem and represents a summary of test cases which have been applied to the subsystems. It will specify following cases.

How many tests have been applied to a subsystem?

How many tests have been successful or unsuccessful?

The degree to which they have been successful or unsuccessful,

Whether a test was an absolute fail or whether some of the expected results of the test were actually observed?

click here to download word file

Asignment-2 Fundamental of Software development

2021-04-30T09:18:00.004+05:30

_Fundamental of Software Development

_Assignment-2

click here to download word file

Practical-10 Design Suitable test cases for a system (Fundamental of software development)

2021-04-29T16:09:00.002+05:30

_practical-10

Design Suitable test cases for a system

(only for information)

Test Scenario for an E-commerce application:-

Test Scenario 1: Check Login Functionality

Test Scenario 2: Check Search Functionality

Test Scenario 3: Check Product Description Page

Test Scenario 4: Check Payments Functionality

Test Scenario 5: Check Order History

Homemade Study

Features of object oriented language

Features of Object Oriented Programming Language (OOP)

Features:-

GTU-Sem-5_JAVA 3350703 Lab manual Solution

_JAVA

3350703 Lab manual Solution

1: Write a Program in Java to generate first n prime numbers.

Answer:-

OUTPUT:-

2: Write a Program in Java to generate first n prime numbers.

Answer:-

OUTPUT:-

3: Write a Program in Java to find second maximum of n numbers without using arrays.

Answer:-

OUTPUT:-

4: Write a Program in Java to reverse the digits of a number using while loop.

Answer:-

OUTPUT:-

5: Write a Program in Java to convert number into words & print it.

Answer:-

OUTPUT:-

6: Write a Program in Java to use Wrapper class of each primitive data types .

Answer:-

OUTPUT:-

Value of Wrapper objects (printing as objects )

OUTPUT:-

7: Write a Program in Java to multiply two matrix.

Answer:-

OUTPUT:-

8: Write a Static block which will be executed before main() method in a class.

Answer:-

OUTPUT:-

9: Write a program in Java to demonstrate use of this keyword. Check whether this can access the private members of the class or not.

Answer:-

OUTPUT:-

Is it possible to open Creo file any other software.if yes then what is saving extension for the same?

Assignment-3 ASP.NET 3351603

_ASP.NET

3351603 Assignment-3

1: List methods of Command object.

Answer:-

2: What are return types of various methods of Command object?

Answer:-

3: Write difference between DataSet and DataReader.

Answer:-

4: Write example ConnectionString for MS Access and SQL Server database connectivity (total 2 separate connection string).

Answer:-

MS Access Connection String :-

SQL Server Connection string:-

5: List methods and properties of Connection object.

Answer:-

6: Write sample code for displaying data in GridView control of student table.

Answer:-

7: Write sample code for inserting data in student table using command object.

Answer:-

8: Write sample code for using average marks using executeScalar method.

Answer:-

9: Write sample code to read data from a customer table using DataReader object.

Answer:-

10: Write sample code to show list of cities in a DropDownList using DataSet.

Answer:-

city.aspx

city.aspx.vb

Practical-12 || ASP.NET || Develop a web page to implement the concept of state management using Session and Application

Practical-12

_ASP.NET

Practical-12: Develop a web page to implement the concept of state management using

Session and Application

ASP.NET pr-14 || Create a web application using Global.asax file which will count the number of visitors on web page.

Practical-15

_ASP.NET

Practical-14 Create a web application using Global.asax file which will count the number of visitors on web page.

JAVA Write a program in Java to find maximum of three numbers using conditional operator

JAVA

Write a program in Java to find maximum of three numbers using conditional operator

practical-15 || ASP.NET || Use various tags in Web.config file for ASP.NET configuration.

Practical-15

_ASP.NET

AIM: Use various tags in Web.config file for ASP.NET configuration

3350703
Lab manual Solution

3351603
Assignment-3

Practical-14
Create a web application using Global.asax file which will count the number of visitors on web page.

3351603
Assignment-2