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VMware and SpringSource

I heard very surprising news today morning which is SpringSource has agreed to be acquired by VMware. http://blog.springsource.com/2009/08/10/springsource-chapter-two/...

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Java EE Application Development using Tomcat, OpenEJB and Hibernate

Java EE Application Development using Tomcat, OpenEJB and Hibernate Before I start writing this blog entry, I’d better point out a few things. This blog entry is not about how to make a good Java EE...

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Web Service Development using Tomcat and OpenEJB

In addition to the previous post, Java EE Application Development using Tomcat, OpenEJB and Hibernate, this post will demonstrate how to create a web service using Tomcat and OpenEJB. The web service...

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Re: Java Challenge: Dropping Balloons in Java

About a few days ago, I read this post, Java Challenge: Dropping Balloons in Java having an interesting question. It’s a question to find an algorithm that gives the highest floor where you can drop a...

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Google Collections Library 1.0 – FINAL

Google has eventually released Google Collections Library 1.0 Final version. Now I can use it for my project. I was actually more looking forward to its release than the release of Spring Framework...

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Code Bubbles – Cool Java IDE

Seeing is believing so just visit http://www.andrewbragdon.com/codebubbles_site.asp and watch the video. What an awesome IDE!!!

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Catch-Up 01 May, 2010

Some part of 3. Bug in Java compiler?Shadowing Declarations? is updated twice on the 10th of May in 2010. I have been very busy and am still busy so haven’t written anything for quite a while on my...

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Quizzes for Primary Schoolchildren

Yesterday (the 5th of May) was the children’s day, which is an official holiday, in South Korea, (by the way, the day before yesterday was Star Wars Day :)) and I found that Xeraph, who is the CEO of...

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Java Uses Call By Sharing

I just saw [Java: It is most certainly pass by value]. It is very shocking that I can still often see people saying “Java is call by value”. I mean, I don’t really get why it is even controversial. I...

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Easier and Better Way to Use JDBC

I can still see many tutorials of JDBC that are not really talking about how JDBC programming can be done easily and more practically & efficiently. I can understand that those tutorials are to...

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Do You Hate Java?

Java.next http://www.infoq.com/presentations/Java-next I quite agree with him. What mistake most people make when they compare Java with other programming languages and talk about how bad Java is is...

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String Concatenation vs Conditional Operator in Java and JavaScript

Java: JavaScript: (Let’s assume that the authorized is a parameter variable) In Java, if you write code like this, you definitely get a compile time error, since String concatenation gets higher...

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What’s new in new mQlicker

I’ve been developing mQlicker for approximately two years. Dr. Raban, Sverre and I co-founded a startup about two year ago and we started developing it. The first official release happened last...

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Five Things You Didn’t Know About PostgreSQL

This proves that the decision I made about three years ago was right! Rob Conery – Five Things You Didn’t Know About PostgreSQL from NDCOslo on Vimeo.

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Look and Say Sequence (Java)

Look and say sequence is the sequence of numbers generated from the previous number by reading off the digits of which the number consists. The Java programme code which reads off the given number can...

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Videos I recommend to (Java) Programmers

For better Java programming Google I/O 2008 – Effective Java Reloaded – Joshua Bloch     Effective Java – Still Effective After All These Years – Joshua Bloch         For better API / language design...

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New Homepage

I’ve renovated my homepage. The old one was The new one is It looks much better in Google Chrome and Firefox than IEs (It doesn’t work in IE6 at all). My projects and about me page are also added.

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Java Generics: Generics in Real Life Programming

It is surprising to see that there are still many people who do not use generics even when they are using JDK 5 or higher. I can often see it especially when I teach some Java programming subjects at...

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Git: Push to / Pull from Both Github and Bitbucket

* Last Updated: 2013-08-26 * Fixed: Bug in the gitpullall() script. – 2013-07-23 * Refactored: gitpullall() – 2013-08-26 Both Github and Bitbucket are good SCM hosting services. For some reason, you...

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Java 8 – Lambda Expressions, Method References and Default Methods

Java 8 – Lambda Expressions, Method References and Default Methods More information will be added later. 1 / 9: Lambda Expressions? (Click to watch) 2 / 9: Details of Lambda Expressions 3 / 9: Closure...

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