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Java Tutorial Through Katas: Mars Rover

A programming kata is an exercise which helps a programmer hone his skills through practice and repetition. This article is part of the series Java Tutorial Through Katas. The article ...
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The dreaded DefaultAbstractHelperImpl

A while ago, we have published this fun game we like to call Spring API Bingo. It is a tribute and flattery to Spring’s immense creativeness when forming meaningful class names likeFactoryAdvisorAdapterHandlerLoader ContainerPreTranslatorInfoDisposable BeanFactoryDestinationResolver LocalPersistenceManagerFactoryBeanTwo ...
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AssertJ > Fest > Hamcrest

I have previously blogged about Hamcrest, and using its assertThat methods in preference to JUnit’s Assert. However, I quickly after discovered FEST Assertions, and happily switched ...
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Java Minor Releases Scheme Tweaked Again

In 2013, Oracle announced the Java SE – Change in Version Numbering Scheme. The announcement stated that Limited Update releases (those “that include new functionality and ...
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Eclipse Extension Point Evaluation Made Easy

Coding Eclipse Extension Point evaluations comes in a bit verbose and sparsely self-explaining. As I got round to busy myself with this topic recently, I wrote a little helper with ...
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NetBeans 8.0’s Five New Performance Hints

NetBeans 8.0 introduces several new Java hints. Although there are a large number of these new hints related to Java Persistence API, I focus on five new hints in the Performance category. The ...
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Java 9 Behind the Scenes: Where Do New Features Come From?

Find out what’s going on behind the scenes of Java, and how new features come to life In a previous post we went over the new and pending features for the upcoming Java 9 release, ...
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Java And The Sweet Science

When you have been developing in Java for 15 years and a coworker asks you to help them debug a null pointer exception, you don’t expect to be surprised. Usually it is quite obvious ...
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A Java conversion puzzler, not suitable for work (or interviews)

A really hard interview question would be something like this:                   int i = Integer.MAX_VALUE; i += 0.0f; int j = i; System.out.println(j ...
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Factory Without IF-ELSE

Object Oriented Language has very powerful feature of Polymorphism, it is used to remove if/else or switch case in code. Code without condition is easy to read. There are some places ...
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