Java & J2EE Archives...

One of my favorite language Java is a programming language and computing platform developed by Sun which is acquired by Oracle now. J2EE is Java Enterprise Edition, which consists of core Java with a powerful set of libraries.

On Crunchify, we do have more than 400+ Java and J2EE tips with additional production ready utilities. Explore all tutorials below.

Java 10 Released with Parallel Full GC, Application Class-Data Sharing – Java SE 10 (JDK 10)

July 14th, 2018 by App Shah

Java 10 is out in the world now. At Crunchify, we have been working with Java 9 since long time and recently we have upgraded to Java SE 10 aka JDK 10.0 But let's go over first thing ...
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Better Logging for your Enterprise Java Application – CrunchifyBetterLog4jLogging.java

April 10th, 2018 by App Shah

If you are developing Java Application where you need to use the logger functionality, there are number of ways you could enhance the Logger Utility. To make sure that logging can be left ...
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Java: How to Get File or Directory Size Programmatically?

April 9th, 2018 by App Shah

java.io.File is my favorite utility which deals with lots of File related to functionalities. I started dealing with Java and File utils more and more in my initial coding days. It's always ...
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What is Lock(), UnLock(), ReentrantLock(), TryLock() and How it’s different from Synchronized Block in Java?

April 2nd, 2018 by App Shah

In this tutorial we will go over Lock(), UnLock(), ReentrantLock(), TryLock() and how it's different from Synchronized Block in Java. If you have also below questions then you are at ...
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Java: Create a Timer Object for Future Execution in a Background Thread – Timer.schedule() Example

July 14th, 2018 by App Shah

java.util.Timer provides facility for threads to schedule tasks for future execution in a background thread. Tasks may be scheduled for one-time execution, or for repeated execution at ...
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How to Create Your Own Non-Blocking, Fixed Size Queue in Java? Same as EvictingQueue

March 24th, 2018 by App Shah

If you don't want to use Google Guava's EvictingQueue external dependency in your Java Enterprise Project then you should consider creating your own non-blocking, fixed size ...
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How to Implement Linux PING utility command in Java?

March 21st, 2018 by App Shah

If you are a programmer then you have to perform Ping operation multiple times everyday during some manual testing or using automated JUnit testing. Here at Crunchify, we have published ...
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In Java How to Get all Text After Special Character from String?

March 10th, 2018 by App Shah

Java substring() utility is a very powerful library if you want to perform multiple special operations on String. It simply returns a substring of the specific string based on number of ...
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How to generate Simple Timeout Exception in Java?

February 25th, 2018 by App Shah

In Java how to generate simple TimeoutException? In this tutorial we will generate Timeout error calling Google.com with simple 10 millisecond delay. CrunchifyGenerateTimeout is a public ...
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