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Core Java
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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Core Java
Java Thread Pool Example using Executors and ThreadPoolExecutor
A thread pool manages the pool of worker threads, it contains a queue that keeps tasks waiting to get executed.…
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Core Java
Java Deadlock Example – How to analyze deadlock situation
Deadlock is a programming situation where two or more threads are blocked forever, this situation arises with at least two…
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Core Java
Java Annotations Tutorial with Custom Annotation
Java Annotations provide information about the code and they have no direct effect on the code they annotate. In this…
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Enterprise Java
Java Regular Expression Tutorial with Examples
When I started my career in java, regular expressions were a nightmare for me. This tutorial is aimed to help…
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Enterprise Java
Rest using Jersey – Complete Tutorial with JAXB, Exception Handling and Client Program
Recently I started working on a Restful web service project using Jersey API. There are some tutorials available online but…
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Desktop Java
Generate QR Code image from Java Program
If you are tech and gadget savvy, then you must be aware of QR codes. You will find it everywhere…
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Core Java
How to Avoid ConcurrentModificationException when using an Iterator
Java Collection classes are fail-fast which means that if the Collection will be changed while some thread is traversing over…
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Core Java
Understanding and Extending Java ClassLoader
The Java ClassLoader is one of the crucial but rarely used components of Java in Project Development. Personally I have…
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