Java Blog Plex by Java Developers

Understanding DTO, VO, POJO and JavaBeans

faisalgeek — Mon, 08 Feb 2010 07:41:38 +0000

JavaBeans A JavaBean is a class that follows the JavaBeans conventions as defined by Sun. Wikipedia has a pretty good summary of what JavaBeans are: JavaBeans are reusable software components for Java that can be manipulated visually in a builder tool. Practically, they are classes written in the Java programming language conforming to a particular convention. They [...]

Sun Certified Java Programmer Books Review

admin — Sun, 17 Jan 2010 08:39:11 +0000

In this post, I am going to make books review for Sun Java Certified Programmer SCJP Sun Certified Programmer for Java Study Guide by Kathy Sierra and Bert Bates Programmer’s Guide to Java™ Certification A Comprehensive Primer, Second Edition Publisher: Addison Wesley SCJP Exam for J2SE 5: A Concise and Comprehensive Study Guide for The Sun Certified Java [...]

Free Web-based Practice Exams with All Java Certifications till Jan 31 2010

admin — Fri, 15 Jan 2010 19:47:38 +0000

Make your certification success 100% sure. Sun Microsystem launched a limited time offer to give Free ePractice exam with the Certification voucher free. Order by January 31, 2010. Sun Java Associate Certification (PK-CERT-SCJA) Sun Java Programmer Certification (PK-CERT-SCJP) Sun Java Web Component Developer (PK-CERT-SCWCD) Sun Java Enterprise Architect Certification (PK-CERT-SCEA) Sun System Administrator Certification Part I (PK-CERT-SCSA1) Sun System Administrator Certification Part [...]

Top 10 JSF RIA Frameworks

admin — Fri, 15 Jan 2010 19:20:53 +0000

Today, I am going to just publish the article that contains the most popular Java Web RIA frameworks mostly coupled with JSF. Then in my next article, I will discuss the most 5 promising framework for Java EE development. Jboss Richfaces Richfaces is known most popular, stable framework. It have full documentation plus great user community. Richfaces [...]

JetBrain’s IntelliJ IDEA goes Open Source

admin — Sat, 17 Oct 2009 10:29:49 +0000

Empowering Java Development, Now Java Developer Community have another leading IDE open sourced. JetBrains has announced that, starting with the next release – version 9.0, it will offer its IntelliJ IDEA Java development environment as open source software. IntelliJ IDEA is to become available in two versions; a free and open source Community Edition, [...]

How to ban JSP scriptlet in JSF Facelet application.

javageek — Wed, 09 Sep 2009 09:08:07 +0000

Building JSF Scriplet-free Web Pages with Expression Language & JSTL Scriptlets (embedded Java code in JSP) are considered to be hazardous from a maintenance standpoint. Especially in JSF development, they should be dumped. The JSP 2.0 specification allows developers to explicitly ban the use of scriptlets by making the following declaration in web.xml: <jsp-config> [...]

jBPM 4.1 Released with Signavio Integration

admin — Thu, 03 Sep 2009 14:24:41 +0000

On 1st September JBoss released jBPM 4.1 with some extra ordinary features & commitments. The most significant feature add is Signavio and Oryx collaboration that gives the web based BPMN graphical designer. The web based PDL designer is now implicit part the of jBPM 4.1 package, no need to do anything extra. Features added are below: End-to-end demo: [...]

Quick Getting Started with jBPM 4.0 Tutorials

admin — Sun, 19 Jul 2009 09:12:43 +0000

Recently I have been start working on jBPM, while I was learning jBPM 3, I heard the jBPM 4.0 first release after its beta and get attention. While exploring jBPM 4.0, it feels much better and stronger to implement a BPM solution with so much powerful features of jBPM 4.0 The jBPM 4.0 release has not gone [...]

Inside String Working in JVM

javageek — Sun, 12 Jul 2009 12:11:19 +0000

Java Virtual Machine maintains an internal list of references for interned Strings ( pool of unique Strings) to avoid duplicate String objects in heap memory. Whenever the JVM loads String literal from class file and executes, it checks whether that String exists in the internal list or not. If it already exists in the list, then it [...]

Inside Implementing & Customizing Serialization in Java

javageek — Sun, 12 Jul 2009 11:35:52 +0000

Implementing serialization in Java is pretty straight forward just a little step task. The class you want to be serialized just have to implements a marker Interface Serializable no override nothing extra work. The JVM will take care of serialization and deserialization process automatically. Now you can write your object to any persistent technology e.g. database, [...]