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Core Java and J2EE Tutorials and Tips 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.

Best way to Compare String Arrays, Integer Arrays and Strings in Java – “CrunchifyCompare” Overloaded Utility for your Project

Last Updated on February 12th, 2017 by App Shah

java.util.* package contains so many utilities like collection framework, event model, date facility, time facility and so on. Java doesn't provide simple compare utility for ...
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Java Collections – hashCode() and equals() – How to Override equals() and hashcode() Method in Java?

Last Updated on February 6th, 2017 by App Shah

equals() and hashCode() in Java are two fundamental method which is declared in Object class and part or core Java library. If you have any one of below concerns in Java then ...
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What is Lock(), UnLock(), ReentrantLock(), TryLock() and How it’s different from Synchronized Block in Java?

Last Updated on February 2nd, 2017 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 ...
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How to Fix Maven Artifacts Could not be Resolved Error? Exclude jms, jmxri & jmxtools JAR Dependencies

Last Updated on January 13th, 2017 by App Shah

I remember long time ago, I faced the same error and I tried fixing it by manually adding .jar files to my maven repository locally. I executed below command to install it in my ...
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How to Implement Insertion Sort Algorithm in Java? Detailed Example Attached

Last Updated on January 7th, 2017 by App Shah

Java Insertion Sort algorithm logic is one of the many simple questions asked in Interview Questions. It sorts array a single element at a time. Very efficient for relatively small ...
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In Java 8 How to Iterate Through java.util.Map and java.util.List? Example attached with Total 5 Different Ways

Last Updated on January 6th, 2017 by App Shah

Do you want to iterate through java.util.Map and java.util.List in Java 8 using latest JDK8? I recently came across the same while working on my production application. Topic ...
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Escape Character Utility for URL and JSON data – Free to use in your Java Project

Last Updated on January 4th, 2017 by App Shah

What is escape character in Java? Mainly escape characters are the characters which replaces existing character with new & provided character which works best without throwing ...
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