Java Collections API Quirks

So we tend to think we’ve seen it all, when it comes to the Java Collections API. We know our…

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40 Java Collections Interview Questions and Answers

Java Collections Framework are the fundamental aspect of java programming language. It’s one of the important topic for java interview…

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Selecting your Collections library

Is this really something you should bother? Is there something fundamentally wrong with java.util.ArrayList and java.util.HashMap? For most of the…

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Type-safe Empty Collections in Java

I have blogged before on the utility of the Java Collections class and have specifically blogged on Using Collections Methods…

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Java: Choosing the right Collection

Here is a quick guide for selecting the proper implementation of a Set , List , or Map in your application. The best general purpose or…

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Java 7: HashMap vs ConcurrentHashMap

As you may have seen from my past performance related articles and HashMap case studies, Java thread safety problems can…

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Five useful ways to sorting in java

A rapid overview of java sorting :                     normal sort of…

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Array, list, set, map, tuple, record literals in Java

Occasionally, when I’m thrilled by the power and expressiveness of JavaScript, I find myself missing one or two features in…

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Common and Unique Elements In Multiple Collections

This week, we’ll take a break from higher level problems and technology posts to deal with just a little code…

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