Beginner's Guide To Programming

DDL & DML COMMANDS 4

2010-10-07T11:12:00.001-07:00

SQL> create table sales_order_details(s_order_no number(4) primary key,product_no number(4),description varchar(10),qty_ordered number(5),qty_disp number(5),product_rate number(5,2),profit_percent number(2),sell_price number(5,2),supplier_name varchar(20));

Table created.

SQL> desc sales_order_details;

Name	Null?	Type
S_ORDER_NO	NOT NULL	NUMBER(4)
PRODUCT_NO		NUMBER(4)
DESCRIPTION		VARCHAR2(10)
QTY_ORDERED		NUMBER(5)
QTY_DISP		NUMBER(5)
PRODUCT_RATE		NUMBER(5,2)
PROFIT_PERCENT		NUMBER(2)
SELL_PRICE		NUMBER(5,2)
SUPPLIER_NAME		VARCHAR2(20)

SQL> insert into sales_order_details values(1,25,'watch',50,60,100,25,24.5,'xrx');

1 row created.

SQL> insert into sales_order_details values(2,36,'pen',60,70,100,50,56.6,'yyy');

1 row created.

SQL> insert into sales_order_details values(3,38,'box',28,23,243,12,122.5,'zhz');

1 row created.

SQL> select * from sales_order_details;

S_ORDER_NO	PRODUCT_NO	DESCRIPTION	QTY_ORDERED	QTY_DISP	PRODUCT_RATE	PROFIT_PERCENT	SELL_PRICE	SUPPLIER_NAME
1	25	Watch	50	60	100	25	24.5	xrx
2	36	Pen	60	70	100	50	56.6	yyy
3	38	Box	28	23	243	12	125.5	zhz

SQL> select product_no,description,sell_price*0.50,sell_price*1.50 from sales_order_details;

PRODUCT_NO	DESCRIPTION	*SELL_PRICE0.50**	*SELL_PRICE1.50**
25	Watch	12.25	36.75
36	Pen	28.3	84.9
38	box	61.25	183.75

SQL> select product_no,profit_percent from sales_order_details where profit_percent not between 10 and 20;

_ORDER_NO

PRODUCT_NO	PROFIT_PERCENT	SELL_PRICE
25	25	24.5
36	50	56.6

SQL> select product_no,profit_percent,sell_price from sales_order_details where profit_percent not between 20 and 30;

PRODUCT_NO	DESCRIPTION	PROFIT_PERCENT	SELL_PRICE
36	Pen	50	56.6
38	Box	12	125.5

SQL> select supplier_name,product_no from sales_order_details where supplier_name like '_r%' or supplier_name like '_h%';

SUPPLIER_NAME	PRODUCT_NO
xrx	25
zhz	38

DDL & DML COMMANDS 3

2010-10-07T11:11:00.001-07:00

SQL> create table sales_order(s_order_no number(4) primary key,product_no number(4),client_no number(4),del_add varchar(20),del_date date,order_status varchar(20));

Table created.

SQL> desc sales_order;

Name	Null?	Type
S_ORDER_NO	NOT NULL	NUMBER(4)
PRODUCT_NO		NUMBER(4)
CLIENT_NO		NUMBER(4)
DEL_ADD		VARCHAR2(20)
DEL_DATE		DATE
ORDER_STATUS		VARCHAR2(20)

SQL> alter table sales_order add salesman_no number(4);

Table altered.

SQL> desc sales_order;

Name	Null?	Type
S_ORDER_NO	NOT NULL	NUMBER(4)
PRODUCT_NO		NUMBER(4)
CLIENT_NO		NUMBER(4)
DEL_ADD		VARCHAR2(20)
DEL_DATE		DATE
ORDER_STATUS		VARCHAR2(20)
SALESMAN_NO		NUMBER(4)

SQL> insert into sales_order values (1,205,101,'mn street','22-oct-2010','delivered',260);

1 row created.

SQL> insert into sales_order values (2,203,102,'ab street','28-nov-1989','pending',500);

1 row created.

SQL> insert into sales_order values (3,33,123,'qw street','24-jun-1991','delivered',500);

1 row created.

SQL> create table sales_order_cc(s_order_no number(4) references sales_order(s_order_no),product_no

number(5), qty_order number(5),product_rate number(10,2),primary key(s_order_no,product_no));

Table created.

SQL> desc sales_order_cc;

Name	Null?	Type
S_ORDER_NO	NOT NULL	NUMBER(4)
PRODUCT_NO	NOT NULL	NUMBER(5)
QTY_ORDER		NUMBER(5)
PRODUCT_RATE		NUMBER(10,2)

SQL> create table sales_order_tc(s_order_no number(4),product_no number(4),qty_order number(5),product_rate number(5,2),primary key(s_order_no ,product_no),foreign key(s_order_no) references sales_ord

er);

Table created.

SQL> desc sales_order_tc;

Name	Null?	Type
S_ORDER_NO	NOT NULL	NUMBER(4)
PRODUCT_NO	NOT NULL	NUMBER(5)
QTY_ORDER		NUMBER(5)
PRODUCT_RATE		NUMBER(10,2)

SQL> alter table sales_order add check(product_no >0);

Table altered.

DDL & DML COMMANDS 2

2010-10-07T11:08:00.000-07:00

SQL> create table student_master(Name varchar(20),Reg_no number(5),dept varchar(20),year number(4));

Table created.

SQL>desc student_master;

Name	Null?	Type
NAME		varchar(20)
REG_NO		number(5)
DEPT		varchar(20)
YEAR		number(4)

SQL> insert into student_master values('xxx',001,'BCA', 1991);

1 row created.

SQL> insert into student_master values('yyy',002,'BCA', 1989);

1 row created.

SQL> insert into student_master values('zzz’,003,'BBA', 1990);

1 row created.

SQL> insert into student_master values('xxx’,001,'BCA', 1991);
1 row created.

SQL> select * from student_master;

NAME	REG_NO	DEPT	YEAR
Xxx	1	BCA	1991
Yyy	2	BCA	1989
Zzz	3	BBA	1990
Xxx	1	BCA	1991

SQL> select name from student_master;

NAME

Xxx

Yyy

Zzz

Xxx

SQL> select * distinct from student_master;

NAME	REG_NO	DEPT	YEAR
Xxx	1	BCA	1991
Yyy	2	BCA	1989
Zzz	3	BBA	1990

SQL> select * from student_master order by reg_no desc;

NAME	REG_NO	DEPT	YEAR
Xxx	1	BCA	1991
Xxx	1	BCA	1991
Yyy	2	BCA	1989
Zzz	3	BBA	1990

SQL> select * from student_master where dept =’BCA’;

NAME	REG_NO	DEPT	YEAR
Xxx	1	BCA	1991
Xxx	1	BCA	1991
Yyy	2	BCA	1989

DDL & DML COMMANDS 1

2010-10-07T11:06:00.000-07:00

SQL> create table client_master(client_no number(10),name varchar(10), address varchar(20),city varchar(10),state varchar(10),remarks varchar(10),bal_due number(5,2));

Table created.

SQL> desc client_master

Name	Null?	Type
CLIENT_NO		NUMBER(10)
NAME		VARCHAR2(10)
ADDRESS		VARCHAR2(20)
CITY		VARCHAR2(10)
STATE		VARCHAR2(10)
REMARKS		VARCHAR2(10)
BAL_DUE		NUMBER(5,2)

SQL> create table supplier_master as select * from client_master;

Table created.

SQL> desc supplier_master;

Name	Null?	Type
CLIENT_NO		NUMBER(10)
NAME		VARCHAR2(10)
ADDRESS		VARCHAR2(20)
CITY		VARCHAR2(10)
STATE		VARCHAR2(10)
REMARKS		VARCHAR2(10)
BAL_DUE		NUMBER(5,2)

SQL> alter table supplier_master rename column client_no to supplier_no;

Table altered.

SQL> alter table supplier_master rename column name to supplier_name;

Table altered.

SQL> desc supplier_master;

Name	Null?	Type
SUPPLIER_NO		NUMBER(10)
SUPPLIER_NAME		VARCHAR2(10)
ADDRESS		VARCHAR2(20)
CITY		VARCHAR2(10)
STATE		VARCHAR2(10)
REMARKS		VARCHAR2(10)
BAL_DUE		NUMBER(5,2)

SQL> insert into client_master values(001,'xxx','mha nagar','vellore','TN','delivered',600);

1 row created.

SQL> insert into client_master values(002,'yyy','bun street','chennai','TN','cash paid',500.45);

1 row created.

SQL> insert into client_master values(003,'zzz','main road','mumbai','MRA','pending',600);

1 row created.

SQL> select * from client_master;

CLIENT_NO	NAME	ADDRESS	CITY	STATE	REMARKS	BAL_DUE
1	xxx	mha nagar	vellore	TN	delivered	600
2	yyy	Bun street	chennai	TN	cash paid	500.45
3	zzz	main road	mumbai	MRA	pending	600

SQL> insert into supplier_master select * from client_master;

3 rows created.

SQL> select * from supplier_master;

SUPPLIER_NO	SUPPLIER_NAME	ADDRESS	CITY	STATE	REMARK	BAL_DUE
1	Xxx	mha nagar	vellore	TN	delivered	600
2	Yyy	Bun street	chennai	TN	cash paid	500.45
3	Zzz	main road	mumbai	MRA	pending	600

SQL> delete from client_master where client_no=002;

1 row deleted.

SQL> select * from client_master;

CLIENT_NO	NAME	ADDRESS	CITY	STATE	REMARKS	BAL_DUE
1	xxx	mha nagar	vellore	TN	delivered	600
3	zzz	main road	mumbai	MRA	pending	600

SORTING

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IDENTIFICATION DIVISION.

PROGRAM-ID. SORT ER.

ENVIRONMENT DIVISION.

INPUT-OUTPUT SECTION.

FILE-CONTROL.

SELECT INFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

SELECT OUTFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

SELECT OUTFILE1 ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

SELECT SORTFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

DATA DIVISION.

FILE SECTION.

FD INFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "ERINN.TXT".

01 INREC.

02 ENO PIC 9(3).

02 ENAME PIC X(20).

02 NHW PIC 9(2).

02 PR PIC 9(2).

FD OUTFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "EROUT.TXT".

01 OUTREC.

02 ENO1 PIC 9(3).

02 ENAME1 PIC X(20).

02 NHW1 PIC 9(2).

02 PR1 PIC 9(2).

SD SORTFILE

DATA RECORD IS SORTREC.

01 SORTREC.

02 SENO PIC 9(3).

02 SENAME PIC X(20).

02 SNHW PIC 9(2).

02 SPR PIC 9(2).

FD OUTFILE1

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "EROUT1.TXT".

01 OUTREC1 PIC X(80).

WORKING-STORAGE SECTION.

77 CH PIC X(1).

77 YTD PIC 9(6).

77 EOF PIC X VALUE 'N'.

01 H1.

02 F PIC X(3) VALUE SPACES.

02 F PIC X(13) VALUE "SALARY REPORT".

01 H2.

02 F PIC X(3) VALUE SPACES.

02 F PIC X(79) VALUE ALL " ".

01 H3.

02 F PIC X(90) VALUE ALL " ".

01 H4.

02 F PIC X(3) VALUE SPACES.

02 F PIC X(7) VALUE "EMP NO".

02 F PIC X(4) VALUE SPACES.

02 F PIC X(8) VALUE "EMP NAME".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(4) VALUE "NHW".

02 F PIC X(4) VALUE SPACES.

02 F PIC X(10) VALUE "PAY RATE".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(4) VALUE "YTDV".

01 H5.

02 F PIC X(13) VALUE SPACES.

02 ONO PIC 9(3).

02 F PIC X(4) VALUE SPACES.

02 ONAME PIC X(20) VALUE SPACES.

02 F PIC X(4) VALUE SPACES.

02 ONHW PIC 9(3).

02 F PIC X(4) VALUE SPACES.

02 OPR PIC 9(10).

02 F PIC X(4) VALUE SPACES.

02 OYTD PIC Z(6).

01 H6.

02 F PIC X(4) VALUE SPACES.

02 F PIC X(10) VALUE "TOTAL YTD".

02 OTYTD PIC 9(7).

77 TYTD PIC 9(7).

PROCEDURE DIVISION.

MAIN-PARA.

OPEN OUTPUT INFILE.

PERFORM INPUT-PARA UNTIL CH = 'N'.

CLOSE INFILE.

PERFORM SORT-PARA.

OPEN INPUT OUTFILE OUTPUT OUTFILE1.

WRITE OUTREC1 FROM H1.

WRITE OUTREC1 FROM H2.

WRITE OUTREC1 FROM H3.

WRITE OUTREC1 FROM H4.

READ OUTFILE AT END MOVE 'Y' TO EOF.

PERFORM READ-PARA UNTIL EOF = 'Y'.

WRITE OUTREC1 FROM H2.

MOVE TYTD TO OTYTD.

WRITE OUTREC1 FROM H6.

CLOSE OUTFILE, OUTFILE1.

STOP RUN.

INPUT-PARA.

DISPLAY "ENTER THE EMP NO".

ACCEPT ENO.

DISPLAY "ENTER THE EMP NAME".

ACCEPT ENAME.

DISPLAY "ENTER THE NO.OF HOURS WORKED".

ACCEPT NHW.

DISPLAY "ENTER THE PAY RATE".

ACCEPT PR.

WRITE INREC.

DISPLAY "DO YOU WANT TO CONTINUE (Y/N).

ACCEPT CH.

MOVE 0 TO TYTD.

SORT-PARA.

SORT SORTFILE ON ASCENDING KEY

SENO USING INFILE GIVING OUTFILE.

READ-PARA.

COMPUTE YTD = NHW1 * PR1.

COMPUTE TYTD = TYTD + YTD.

MOVE ENO1 TO ONO.

MOVE ENAME1 TO ONAME.

MOVE NHW1 TO ONHW.

MOVE PR1 TO OPR.

MOVE YTD TO OYTD.

WRITE OUTREC1 FROM H5.

READ OUTFILE AT END MOVE 'Y' TO EOF.

DEPT NAME LOOK UP

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IDENTIFICATION DIVISION.

PROGRAM-ID. DEPTNAME.

ENVIRONMENT DIVISION.

INPUT-OUTPUT SECTION.

FILE-CONTROL.

SELECT INFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

SELECT OUTFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

DATA DIVISION.

FILE SECTION.

FD INFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "DEPTINN.TXT".

01 INREC.

02 DNO PIC 9(4).

02 ENO PIC 9(9).

02 LNA PIC X(12).

02 FNA PIC X(9).

FD OUTFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "DEPTOUT.TXT".

01 OUTREC PIC X(80).

WORKING-STORAGE SECTION.

77 CH PIC X.

77 DNA PIC X(26).

77 EOF PIC X VALUE 'N'.

01 DEPT-DATA.

02 F PIC X(30) VALUE "1000 ADMINISTRATION".

02 F PIC X(30) VALUE "2000 PURCHASING".

02 F PIC X(30) VALUE "3000 PERSONNEL".

02 F PIC X(30) VALUE "4000 ADVERTISING ".

02 F PIC X(30) VALUE "5000 PUBLIC RELATIONS".

02 F PIC X(30) VALUE "6000 TRAINING".

02 F PIC X(30) VALUE "7000 RESEARCH DEVELOPMENT".

02 F PIC X(30) VALUE "8000 FINANCE".

02 F PIC X(30) VALUE "9000 DATA PROCESSING".

02 F PIC X(30) VALUE "1100 MANUFACTURING".

01 DEPT-TABLE REDEFINES DEPT-DATA.

02 DNAME-ENTRY OCCURS 10 TIMES INDEXED BY A.

03 DEPTNO PIC 9(4).

03 DEPTNA PIC X(26).

01 H1.

02 F PIC X(29) VALUE SPACES.

02 F PIC X(23) VALUE "DEPARTMENT NAME LOOK UP".

01 H2.

02 F PIC X(29) VALUE SPACES.

02 F PIC X(23) VALUE ALL "*".

01 H3.

02 F PIC X(3) VALUE SPACES.

02 F PIC X(8) VALUE "EMP NO".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(12) VALUE "FIRST NAME".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(12) VALUE "LAST NAME".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(9) VALUE "DEPT NO.".

02 F PIC X(3) VALUE SPACES.

02 F PIC X(15) VALUE "DEPARTMENT NAME".

01 H4.

02 F PIC X(3) VALUE SPACES.

02 OENO PIC 9(9).

02 F PIC X(3) VALUE SPACES.

02 OFNA PIC X(9).

02 F PIC X(3) VALUE SPACES.

02 OLNA PIC X(12).

02 F PIC X(3) VALUE SPACES.

02 ODNO PIC 9(4).

02 F PIC X(3) VALUE SPACES.

02 ODNA PIC X(26).

02 F PIC X(3) VALUE SPACES.

PROCEDURE DIVISION.

MAIN-PARA.

OPEN OUTPUT INFILE.

PERFORM INPUT-PARA UNTIL CH = 'N'

CLOSE INFILE.

OPEN INPUT INFILE OUTPUT OUTFILE.

WRITE OUTREC FROM H1.

WRITE OUTREC FROM H2.

WRITE OUTREC FROM H3.

READ INFILE AT END MOVE 'Y' TO EOF.

PERFORM P2 UNTIL EOF = 'Y'.

CLOSE INFILE, OUTFILE.

STOP RUN.

INPUT-PARA.

DISPLAY "EMPLOYEE NO".

ACCEPT ENO.

DISPLAY "LAST NAME".

ACCEPT LNA.

DISPLAY "FIRST NAME".

ACCEPT FNA.

DISPLAY "DEPARTMENT NO".

ACCEPT DNO.

WRITE INREC.

DISPLAY "DO YOU WANT TO CONTINUE (Y/N)".

ACCEPT CH.

P2.

SET A TO 1.

SEARCH DNAME-ENTRY AT END

MOVE "NO SUCH DEPTNO" TO DNA WHEN DNO = DEPTNO (A)

MOVE DEPTNA (A) TO DNA.

PERFORM MOVE-PARA.

READ INFILE AT END MOVE 'Y' TO EOF.

MOVE-PARA.

MOVE ENO TO OENO.

MOVE LNA TO OLNA.

MOVE FNA TO OFNA.

MOVE DNO TO ODNO.

MOVE DNA TO ODNA.

WRITE OUTREC FROM H4.

ACCOUNT BALANCE REPORT

2010-10-07T10:57:00.000-07:00

IDENTIFICATION DIVISION.

PROGRAM-ID. ACCOUNTBAL.

ENVIRONMENT DIVISION.

INPUT-OUTPUT SECTION.

FILE-CONTROL.

SELECT INFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

SELECT OUTFILE ASSIGN TO DISK

ORGANIZATION IS LINE SEQUENTIAL.

DATA DIVISION.

FILE SECTION.

FD INFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "ACCIN.TXT".

01 INREC.

02 ACCNO PIC X(3).

02 ACCDESC PIC X(10).

02 ACCBAL PIC S9(8)V9(2).

FD OUTFILE

LABEL RECORDS ARE STANDARD

VALUE OF FILE-ID IS "ACCOUT.TXT".

01 OUTREC PIC X(80).

WORKING-STORAGE SECTION.

01 DETAIL-LINE.

02 F PIC X(3) VALUE SPACES.

02 OACCNO PIC X(3).

02 F PIC X(3) VALUE SPACES.

02 OACCDESC PIC X(10).

02 F PIC X(3) VALUE SPACES.

02 OACCBAL PIC Z(7)9.99CR.

01 CURRENT-ACCNO PIC X(3).

01 ACC-BALANCE PIC S9(8)V9(2) VALUE ZERO.

01 END-OF-FILE-SWITCH PIC X VALUE 'N'.

88 END-OF-FILE VALUE 'Y'.

01 SUB-TOTAL-LINE.

02 F PIC X(5) VALUE SPACES.

02 F PIC X(10) VALUE "TOTAL FOR".

02 SUB-TOTAL PIC X(3).

02 F PIC X(23) VALUE ":".

02 SUB-TOTAL-BALANCE PIC $$,$$$,$$9.99CR.

77 CH PIC X(1).

PROCEDURE DIVISION.

MAIN-PARA.

OPEN OUTPUT INFILE.

PERFORM INPUT-PARA UNTIL CH = 'N'.

CLOSE INFILE.

PERFORM INITIALIZATION-ROUTINE.

PERFORM THE-LOOP UNTIL END-OF-FILE.

PERFORM EOJ-ROUTINE.

STOP RUN.

INPUT-PARA.

DISPLAY "ENTER THE ACC NUMBER".

ACCEPT ACCNO.

DISPLAY "ENTER ACC DESCRIPTION".

ACCEPT ACCDESC.

DISPLAY "ENTER ACC BALANCE".

ACCEPT ACCBAL.

WRITE INREC.

DISPLAY "DO YOU WANT TO CONTINUE (Y/N)".

ACCEPT CH.

INITIALIZATION-ROUTINE.

OPEN INPUT INFILE OUTPUT OUTFILE.

READ INFILE AT END MOVE 'Y' TO END-OF-FILE-SWITCH.

MOVE ACCNO TO CURRENT-ACCNO.

THE-LOOP.

IF ACCNO NOT = CURRENT-ACCNO PERFORM CONTROL-BREAK.

MOVE ACCNO TO OACCNO.

MOVE ACCDESC TO OACCDESC.

MOVE ACCBAL TO OACCBAL.

WRITE OUTREC FROM DETAIL-LINE.

ADD ACCBAL TO ACC-BALANCE.

MOVE ACCNO TO CURRENT-ACCNO.

READ INFILE AT END MOVE 'Y' TO END-OF-FILE-SWITCH.

EOJ-ROUTINE.

PERFORM CONTROL-BREAK.

CLOSE INFILE, OUTFILE.

CONTROL-BREAK.

MOVE ACC-BALANCE TO SUB-TOTAL-BALANCE.

MOVE CURRENT-ACCNO TO SUB-TOTAL.

WRITE OUTREC FROM SUB-TOTAL-LINE.

MOVE ZERO TO ACC-BALANCE.

COMMAND LINE ARGUMENTS

2010-10-01T10:51:00.000-07:00

/* COMMAND LINE ARGUMENTS */

#include<stdio.h>

void main(int argc,char *argv[])

{

FILE *f1;

char c;

if(argc>2)

printf("Insufficient argument");

f1=fopen(argv[1],"r");

printf("The content of given input file is as

follows\n");

while((c=getc(f1))!=EOF)

printf("%c",c);

fclose(f1);

}

OUTPUT:

-------

C:\Documents and Settings\sss>cd..

C:\Documents and Settings>cd..

C:\>cd turboc3

C:\TURBOC3>comline comline.c

The content of given input file is as follows

#include<stdio.h>

void main(int argc,char *argv[])

{

FILE *f1;

char c;

if(argc>2)

printf("Insufficient argument");

f1=fopen(argv[1],"r");

printf("The content of given input file is as

follows\n");

while((c=getc(f1))!=EOF)

printf("%c",c);

fclose(f1);

}

FILE COPYING

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/ /* FILE COPYING */

#include<stdio.h>

#include<stdlib.h>

void main()

{

FILE *fp1,*fp2;

int i;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tCreated a text file name as sample.txt

with the content like 'This is my first program.'");

if((fp1=fopen("D:\sample.txt","r"))==NULL)

{

printf("Cannot open file\n");

exit(1);

}

if((fp2=fopen("D:\sampledup.txt","w"))==NULL)

{

printf("cannot open file\n");

exit(1);

}

while((i=getc(fp1))!=EOF)

putc(i,fp2);

fclose(fp1);

fclose(fp2);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tThe text copied into file sampledup.txt

as follows\n");

printf("\n\t\t");

fp2=fopen("D:\sampledup.txt","r");

while((i=getc(fp2))!=EOF)

putchar(i);

fclose(fp2);

getch();

}

INPUT:

------

Created a text file name as sample.txt with the content like This is my first program.

OUTPUT:

-------

The text copied into file sampledup.txt as follows

This is my first program.

BINARY SEARCH

2010-10-01T10:49:00.001-07:00

/* BINARY SEARCH */

#include<stdio.h>

#include<conio.h>

void main()

{

int a[20],n,i,loc,mid,beg,end,flag=0,item;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the number of elements: ");

scanf("%d",&n);

printf("\n\t\tEnter the elements:\n");

for(i=0;i<n;i++)

{

scanf("%d",&a[i]);

}

printf("\n\t\tEnter the element to be search: ");

scanf("%d",&item);

loc=0;

beg=0;

end=n-1;

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

while((beg<end)&&(item!=a[mid]))

{

mid=((beg+end)/2);

if(item==a[mid])

{

printf("\n\t\tSearch is successful.");

loc=mid;

printf("\n\t\tPosition of the item is:

%d",loc+1);

flag=flag+1;

}

else if(item<a[mid])

end=mid-1;

else

beg=mid+1;

}

if(flag==0)

{

printf("\n\t\tSearch is not successful.");

}

getch();

}

INPUT:

------

Enter the number of elements: 5

Enter the elements:

354

234

575

Enter the element to be search: 22

OUTPUT:

-------

Search is successful.

Position of the item is: 3

INPUT:

------

Enter the number of elements: 5

Enter the elements:

Enter the element to be search: 30

OUTPUT:

-------

Search is not successful

BUBBLE SORT

2010-10-01T10:48:00.001-07:00

/* BUBBLE SORT */

#include<stdio.h>

#include<conio.h>

void main()

{

int a[20],n,i,j,temp;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the number of elements: ");

scanf("%d",&n);

printf("\n\t\tEnter the elements:\n");

for(i=0;i<n;i++)

{

scanf("%d",&a[i]);

}

for(i=0;i<n;i++)

{

for(j=0;j<n-i-1;j++)

{

if(a[j]>a[j+1])

{

temp=a[j];

a[j]=a[j+1];

a[j+1]=temp;

}

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tAfter sorting the elements are:");

for(i=0;i<n;i++)

{

printf("\n\t\t\t\t%d",a[i]);

}

getch();

}

INPUT:

------

Enter the number of elements: 5

Enter the elements:

OUTPUT:

-------

After sorting the elements are:

DETERMINANT OF A MATRIX

2010-10-01T10:47:00.001-07:00

/* DETERMINANT OF A MATRIX */

#include<stdio.h>

#include<conio.h>

void main()

{

float a[10][10],mul,det=1.0,b;

int i,j,k,n;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the value for n: ");

scanf("%d",&n);

printf("\n\t\tEnter the matrix\n");

for(i=1;i<=n;i++)

{

for(j=1;j<=n;j++)

{

scanf("\t\t%f",&b);

a[i][j]=b;

}

printf("\n\t\t");

}

for(i=1;i<=n;i++)

{

for(j=1;j<=n;j++)

{

if(i==j) continue;

mul=a[j][i]/a[i][i];

for(k=1;k<=n;k++)

{

a[j][k]=a[j][k]-mul*a[i][k];

}

for(i=1;i<=n;i++)

{

for(j=1;j<=n;j++)

{

if(i==j)

det=det*a[i][i];

}

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

if(det==0)

{

printf("\n\t\tThe given matrix is Singular Matrix");

exit(0);

}

else

{

printf("\n\t\tDeterminant of matrix is: %f",det);

}

getch();

}

INPUT:

------

Enter the value for n: 2

Enter the matrix:

2 3

4 5

OUTPUT:

-------

Determinant of matrix is: -2.000000

MATRIX ADDITION, SUBTRACTION AND MULTIPLICATION

2010-10-01T10:46:00.001-07:00

/* MATRIX ADDITION, SUBTRACTION AND MULTIPLICATION */

#include<stdio.h>

#include<conio.h>

void main()

{

int i,j,c,r,k;

int a[20][20],b[20][20],ma[20][20],ms[20][20];

int mm[20][20];

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the value for row and column: ");

scanf("%d%d",&c,&r);

printf("\n\t\tEnter the value for matrix A\n");

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

scanf("%d",&a[i][j]);

}

printf("\n");

}

printf("\n\t\tEnter the value for matrix B\n");

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

scanf("%d",&b[i][j]);

}

printf("\n");

}

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

ma[i][j]=a[i][j]+b[i][j];

ms[i][j]=a[i][j]-b[i][j];

}

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

mm[i][j]=0;

for(k=0;k<c;k++)

{

mm[i][j] +=a[i][k]*b[k][j];

}

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tThe addition matrix is:\n");

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

printf("\t\t%d",ma[i][j]);

}

printf("\n");

}

printf("\n\t\tThe subtraction matrix is:\n");

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

printf("\t\t%d",ms[i][j]);

}

printf("\n");

}

printf("\n\t\tThe multiplication matrix is:\n");

for(i=0;i<c;i++)

{

for(j=0;j<r;j++)

{

printf("\t\t%d",mm[i][j]);

}

printf("\n");

}

getch();

}

INPUT:

------

Enter the value for row and column: 2 2

Enter the value for matrix A

4 3

6 2

Enter the value for matrix B

8 1

0 5

OUTPUT:

-------

The addition matrix is:

12 4

6 7

The subtraction matrix is:

-4 2

6 -3

The multiplication matrix is:

32 19

48 16

MAXIMUM AND MINIMUM

2010-10-01T10:45:00.002-07:00

/* MAXIMUM AND MINIMUM */

#include<stdio.h>

#include<conio.h>

int min,max;

void main()

{

int i,n,a[10];

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the number of elements: ");

scanf("%d",&n);

printf("\n\t\tEnter the elements:\n");

for(i=0;i<n;i++)

{

scanf("%d",&a[i]);

}

min=max=a[0];

maxmin(a,n);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tThe minimum value is: %d",min);

printf("\n\t\tThe maximum value is: %d",max);

getch();

}

maxmin(int a[],int n)

{

n--;

if(n==0)

return;

if(max<a[n])

max=a[n];

if(min>a[n])

min=a[n];

maxmin(a,n);

return;

}

INPUT:

------

Enter the number of elements: 5

Enter the elements:

334

OUTPUT:

-------

The minimum value is: 34

The maximum value is: 334

GCD OF TWO NUMBERS

2010-10-01T10:45:00.000-07:00

/* GCD OF TWO NUMBERS */

#include<stdio.h>

#include<conio.h>

void main()

{

int a,b,gcd;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter two numbers: ");

scanf("%d%d",&a,&b);

gcd=recgcd(a,b);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tThe GCD of %d and %d is = %d ",a,b,gcd);

getch();

}

int recgcd(int x, int y)

{

int r;

if(y = = 0)

{

return(x);

}

else

{

r=x%y;

return(recgcd(y,r));

}

INPUT:

------

Enter two numbers:

OUTPUT:

-------

The GCD of 8 and 4 is = 4

FINDING AND REPLACING SUBSTRINGS

2010-10-01T10:44:00.000-07:00

/* FINDING AND REPLACING SUBSTRINGS */

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

char s1[50],s2[50],s3[50],a[20],r[50];

int i,j,k,l1,l2,s=0,p,c=0;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the string: ");

gets(s1);

printf("\n\t\tEnter the substring: ");

gets(s2);

printf("\n\t\tEnter the replace string: ");

gets(s3);

l1=strlen(s1);

l2=strlen(s2);

for(i=0;i<l1;i++)

{

k=0;

if(s1[i]==s2[0])

{

for(j=i;j<i+l2;j++)

{

a[k]=s1[j];

k++;

}

a[k]='\0';

if(strcmp(a,s2)==0)

{

for(p=0;s3[p]!='\0';p++)

{

r[s++]=s3[p];

}

i=i+l2-1;

c++;

}

else

r[s++]=s1[i];

}

else

r[s++]=s1[i];

}

r[s++]='\0';

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

if(c==0)

{

printf("\n\t\tThe Substring is not Found");

}

else

{

printf("\n\t\tThe Substring is Found");

printf("\n\t\tReplaced string is : %s",r);

}

getch();

}

INPUT:

------

Enter the string: I am doing BCA

Enter the substring: BCA

Enter the replace string: Bachelor Degree

OUTPUT:

-------

The Substring is Found

Replaced string is : I am doing Bachelor Degree

INPUT:

------

Enter the string: I am doing BCA

Enter the substring: cs

Enter the replace string: bca

OUTPUT:

-------

The Substring is not Found

SUBSTRING DETECTION, COUNT AND REMOVAL

2010-10-01T10:42:00.001-07:00

/* SUBSTRING DETECTION, COUNT AND REMOVAL */

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

char s1[50],s2[50],a[50],s3[50],r[10];

int i,j,k,c,l1,l2,s=0,p1[10],p=0;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the string: ");

gets(s1);

printf("\n\t\tEnter the substring: ");

gets(s2);

l1=strlen(s1);

l2=strlen(s2);

c=0;

for(i=0;i<l1;i++)

{

k=0;

if(s1[i]==s2[0])

{

for(j=i;j<i+l2;j++)

{

a[k]=s1[j];

k++;

}

a[k]='\0';

if(strcmp(a,s2)==0)

{

p1[p]=i+1;

p++;

c++;

i=i+l2-1;

}

else

r[s++]=s1[i];

}

r[s++]='\0';

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

for(p=0;p<c;p++)

printf("\n\t\t'%s' occurs at position %d in

'%s'",s2,p1[p],s1);

if(c==0)

{

printf("\n\t\tSubstring '%s' is not found",s2);

}

else

{

printf("\n\t\tSubstring '%s' is found at %d times in

'%s'",s2,c,s1);

printf("\n\t\tAfter detection of substring: %s",r);

}

getch();

}

INPUT:

------

Enter the string: programming

Enter the substring: m

OUTPUT:

-------

'm' occurs at position 7 in 'programming'

'm' occurs at position 8 in 'programming'

Substring 'm' is found at 2 times in 'programming'

After detection of substring: prograing

INPUT:

------

Enter the string: programming

Enter the substring: ds

OUTPUT:

-------

Substring 'ds' is not found

COUNTING THE NO.OF VOWELS, CONSONANTS, WORDS AND WHITE SPACES

2010-10-01T10:41:00.000-07:00

/* COUNTING THE NO.OF VOWELS, CONSONANTS, WORDS

AND WHITE SPACES */

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

int i,len,s=0,w=1,c=0,v=0;

char s1[20],ch;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the Text: ");

gets(s1);

len=strlen(s1);

for(i=0;i<=len-1;i++)

{

ch=s1[i];

switch(ch)

{

case 'A':

case 'E':

case 'I':

case 'O':

case 'U':

case 'a':

case 'e':

case 'i':

case 'o':

case 'u':

v++;

break;

case ' ':

s++;

break;

default:

c++;

}

if(s1[i]==' ' && s1[i-1]!=' ')

{

w++;

}

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

printf("\n\t\tThe number of vowels is: %d",v);

printf("\n\t\tThe number of consonants is: %d",c);

printf("\n\t\tThe number of words is: %d",w);

printf("\n\t\tThe number of white spaces is: %d",s);

getch();

}

INPUT:

------

Enter the Text: I am belongs to BCA

OUTPUT:

-------

The number of vowels is: 6

The number of consonants is: 9

The number of words is: 5

The number of white spaces is: 4

SUMMATION OF EXPONENTIAL SERIES

2010-10-01T10:40:00.000-07:00

/* SUMMATION OF EXPONENTIAL SERIES */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

int x,n,i,prod;

float t,sum;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the value for x: ");

scanf("%d",&x);

printf("\n\t\tEnter the value for n: ");

scanf("%d",&n);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

sum=1;

t=1;

for(i=1;i<=n;i++)

{

prod=i;

t=t*x/prod;

sum=sum+t;

}

printf("\n\t\tThe value for exp %d is: %f",x,sum);

printf("\n\t\tThe built-in value for given value is:

%f",exp(x));

getch();

}

INPUT:

------

Enter the value for x: 1

Enter the value for n: 5

OUTPUT:

-------

The value for exp 1 is: 2.716667

The built-in value for given value is: 2.718282

SUMMATION OF COSINE SERIES

2010-10-01T10:39:00.000-07:00

/* SUMMATION OF COSINE SERIES */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

int x,n,t=-1,i,j;

double num,sum=1.0,r;

long int deno;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the value for x: ");

scanf("%d",&x);

printf("\n\t\tEnter the value for n: ");

scanf("%d",&n);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

r=x*(3.14/180.0);

printf("\n\t\tThe radius value for the given x value

is: %lf",r);

for(i=2;i<=n;i+=2)

{

num=1.0;

deno=1;

for(j=2;j<=i;j++)

{

num=num*r;

deno=deno*j;

}

sum=sum+num/deno*t;

t=t*-1;

}

printf("\n\t\tThe value for cos %d is: %lf",x,sum);

printf("\n\t\tThe built-in value for given value is:

%lf",cos(r));

getch();

}

INPUT:

------

Enter the value for x: 60

Enter the value for n: 4

OUTPUT:

-------

The radius value for the given x value is: 1.046667

The value for cos 60 is: 0.524443

The built-in value for given value is: 0.500460

SUMMATION OF SINE SERIES

2010-10-01T10:38:00.000-07:00

/ * SUMMATION OF SINE SERIES */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

int x,n,t=1,i,j;

double num,sum=0.0,r;

long int deno;

clrscr();

printf("\n\t\tINPUT:");

printf("\n\t\t------");

printf("\n\t\tEnter the value for x: ");

scanf("%d",&x);

printf("\n\t\tEnter the value for n: ");

scanf("%d",&n);

printf("\n\t\tOUTPUT:");

printf("\n\t\t-------");

r=x*(3.14/180.0);

printf("\n\t\tThe radius value for the given x value

is: %lf",r);

for(i=1;i<=n;i+=2)

{

num=1.0;

deno=1;

for(j=1;j<=i;j++)

{

num=num*r;

deno=deno*j;

}

sum=sum+num/deno*t;

t=t*-1;

}

printf("\n\t\tThe value for sin %d is: %lf",x,sum);

printf("\n\t\tThe built-in value for given value is:

%lf",sin(r));

getch();

}

INPUT:

------

Enter the value for x: 30

Enter the value for n: 3

OUTPUT:

-------

The radius value for the given x value is: 0.523333

The value for sin 30 is: 0.499445

The built-in value for given value is: 0.499770

Quick Sort

2010-09-03T06:32:00.001-07:00

#include<iostream.h>

#include<conio.h>

class list

{

public:

int n,q[20],cmp_count,mov_count;

list()

{

cmp_count=0;

mov_count=0;

}

void read()

{

cout<<"\nEnter the number of elements:";

cin>>n;

cout<<"\nEnter the elements:\n";

for(int i=0;i<n;i++)

{

cin>>q[i];

}

void swap(int x,int y)

{

int temp;

temp=q[x];

q[x]=q[y];

q[y]=temp;

}

void quick_sort(int low,int high)

{

int pivot,i,j;

if(low>high)

return;

i=low+1;

j=high;

pivot=q[low];

while(i<=j)

{

while((q[i]<=pivot)&&(i<=high))

{

i++;

cmp_count++;

}

cmp_count++;

while((q[j]>pivot)&&(j>=low))

{

j--;

cmp_count++;

}

cmp_count++;

if(i<j)

{

swap(i,j);

mov_count++;

}

if(low<j)

{

swap(low,j);

mov_count++;

}

quick_sort(low,j-1);

quick_sort(j+1,high);

}

void display()

{

cout<<"The sorted elements are:\n";

for(int j=0;j<n;j++)

{

cout<<q[j]<<endl;

}

cout<<"\nNumber of comparisons:"<<cmp_count;

cout<<"\nNumber of data movements:"<<mov_count;

}

int getsize()

{

return(n);

}

};

void main()

{

clrscr();

list l;

l.read();

l.quick_sort(0,l.getsize()-1);

l.display();

getch();

}

Binary Tree Traversal

2010-09-03T06:31:00.001-07:00

#include<iostream.h>

#include<conio.h>

class tree

{

public:

char info;

tree *lchild;

tree *rchild;

};

class treetraversal

{

private:

char x;

public:

void input(tree *p);

void preorder(tree *p);

void inorder(tree *p);

void postorder(tree *p);

};

void treetraversal::input(tree *ptr)

{

cout<<"\n\tEnter the element:";

cin>>x;

if(x=='0')

ptr->info='$';

else

{

ptr->info=x;

cout<<"\n\t"<<ptr->info<<"Left is:\n"<<endl;

ptr->lchild=new tree;

input(ptr->lchild);

cout<<"\n\t"<<ptr->info<<"Right is :\n"<<endl;

ptr->rchild=new tree;

input(ptr->rchild);

}

void treetraversal::preorder(tree *ptr)

{

if(ptr->info!='$')

{

cout<<ptr->info;

preorder(ptr->lchild);

preorder(ptr->rchild);

}

void treetraversal::inorder(tree *ptr)

{

if(ptr->info!='$')

{

inorder(ptr->lchild);

cout<<ptr->info;

inorder(ptr->rchild);

}

void treetraversal::postorder(tree *ptr)

{

if(ptr->info!='$')

{

postorder(ptr->lchild);

postorder(ptr->rchild);

cout<<ptr->info;

}

void main()

{

treetraversal t;

tree *te=new tree;

clrscr();

t.input(te);

cout<<"\n\tThe Pre-order traversal for the given tree is:";

t.preorder(te);

cout<<"\n\tThe In-order traversal for the given tree is:";

t.inorder(te);

cout<<"\n\tThe Post-order traversal for the given tree is:";

t.postorder(te);

getch();

}

Singly Linked List

2010-09-03T06:30:00.000-07:00

#include<iostream.h>

#include<string.h>

#include<conio.h>

#include<stdlib.h>

class Node

{

public:

int rollnumber;

char name[20];

Node *next;

};

class List

{

Node *START;

public:

List();

void addNode();

int Search(int rollno, Node **current, Node **previous);

int listEmpty();

int delNode(int element);

void traverse();

};

List::List()

{

START=NULL;

}

void List::addNode()

{

int rollno;

char nm[20];

cout<<"\n Enter the roll number of the student:";

cin>>rollno;

cout<<"\n Enter the name of the student:";

cin>>nm;

Node *newnode=new Node;

newnode->rollnumber=rollno;

strcpy(newnode->name,nm);

if(START==NULL||rollno<=START->rollnumber)

{

if((START!=NULL)&&(rollno==START->rollnumber))

{

cout<<"\n Duplicate roll numbers not allowed\n";

return;

}

newnode->next=START;

START=newnode;

return;

}

Node *previous, *current;

previous=START;

current=START;

while((current!=NULL)&&(rollno>=current->rollnumber))

{

if(rollno==current->rollnumber)

{

cout<<"\n Duplicate roll numbers not allowed\n";

return;

}

previous=current;

current=current->next;

}

newnode->next=current;

previous->next=newnode;

}

int List::listEmpty()

{

if(START==NULL)

return 1;

else

return 0;

}

int List::delNode(int rollno)

{

Node *current,*previous;

if(Search(rollno,&previous,&current)==0)

return 0;

previous->next=current->next;

if(current==START)

START=START->next;

delete current;

return 1;

}

int List:: Search(int rollno,Node **previous,Node **current)

{

*previous=START;

*current=START;

while((*current!=NULL)&&(rollno!=(*current)->rollnumber))

{

*previous=*current;

*current=(*current)->next;

}

return(*current!=NULL);

}

void List::traverse()

{

if(listEmpty())

cout<<"\n List is enpty\n";

else

{

cout<<endl<<"The record in the list are:"<<endl;

Node *currentNode;

for(currentNode=START;currentNode!=NULL;currentNode=currentNode->next)

{

cout<<currentNode->rollnumber<<" "<<currentNode->name<<"\n";

}

cout<<endl;

}

void main()

{

clrscr();

List obj;

int rollno;

char ch;

{

cout<<"Main Menu";

cout<<endl<<"1.Add a record to the list"<<endl;

cout<<"2.Delete a record from the list"<<endl;

cout<<"3.View all the records in the list"<<endl;

cout<<"4.Search for a record in the list"<<endl;

cout<<"5.Exit"<<endl;

cout<<"Enter the choice:";

cin>>ch;

switch(ch)

{

case '1':

obj.addNode();

break;

case '2':

if(obj.listEmpty())

{

cout<<endl<<"List is empty"<<endl;

break;

}

cout<<endl<<"\n Enter the roll number of the student

whose record is to be delete:";

cin>>rollno;

if(obj.delNode(rollno)==0)

cout<<endl<<"Record not found"<<endl;

else

{

cout<<endl<<"Record with roll

number"<<rollno<<"delete"<<endl;

}

break;

case '3':

obj.traverse();

break;

case'4':

if(obj.listEmpty()==1)

{

cout<<"\n List is empty\n";

break;

}

Node *previous,*current;

cout<<endl<<"Enter the roll number of the student whose

record is to be searched:";

cin>>rollno;

if(obj.Search(rollno, &previous, &current)==0)

cout<<endl<<"Record not found"<<endl;

else

{

cout<<endl<<"Record found"<<endl;

cout<<"\nRoll number:"<<current->rollnumber;

cout<<"\n\nName:"<<current->name;

cout<<"\n";

}

break;

case '5':

exit(0);

break;

}

}while(ch!=5);

getch();

}

Queue Using Array

2010-09-03T06:29:00.000-07:00

#include<iostream.h>

#include<conio.h>

class queue

{

private:

int q[10],front,rear,n,x,i;

public:

queue()

{

cout<<"Enter the no.of elements:";

cin>>n;

front=0;

rear=0;

}

void add()

{

cout<<"Enter the element:";

cin>>x;

if(rear==n)

{

cout<<"Queue is full";

return;

}

else

{

rear=rear+1;

q[rear]=x;

}

int delet()

{

if(front==rear)

{

cout<<"Queue is empty";

return(0);

}

else

{

int y;

front=front+1;

y=q[front];

return(y);

}

void display()

{

for(i=front+1;i<=rear;i++)

{

cout<<q[i]<<”\t”;

}

};

void main()

{

clrscr();

int choice;

queue q;

{

cout<<"\n1.Add"<<endl;

cout<<"2.Delete"<<endl;

cout<<"3.Display"<<endl;

cout<<"4.Exit"<<endl;

cout<<"Enter the choice:";

cin>>choice;

if(choice==1)

{

q.add();

cout<<"The elements after addition are "<<endl;

q.display();

}

if(choice==2)

{

int p;

p=q.delet();

cout<<"The deleted element is:"<<p;

cout<<"\nThe element after deletion are "<<endl;

q.display();

}

if(choice==3)

{

cout<<"The queue elements are"<<endl;

q.display();

}

}while(choice!=4);

getch();

}