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.

Memcached Java Client Tutorial using net.spy.spymemcached Library

December 21st, 2018 by App Shah

Few days back I've written an article on how to setup and start MemCached Server locally on you Mac OS with few simple steps. There are three different ways to create Memcached Java ...
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Getting Ready for Java 11/JDK 11 and Deprecated Java EE Modules JAXB, JAX-WS, JAF, JTA, CORBA

December 14th, 2018 by App Shah

Hello all! It's time for us to upgrade to Java 11. Sometime back Java 11 was launched on September 25, 2018. Today we got chance to upgrade our JDK to Java11 on my Macbook Pro. Do you ...
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Java 11 and How to fix java.lang. TypeNotPresentException: Type javax.xml.bind.JAXBContext Exception?

December 14th, 2018 by App Shah

Are you facing java.lang.TypeNotPresentException: Type javax.xml.bind.JAXBContext not present exception? Today while running my RESTful service on my Eclipse I noticed ...
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Java Hashmap – containsKey(Object key) and containsValue(Object value) – Check if Key/Value Exists in Map

December 12th, 2018 by App Shah

There are few concepts and technologies which comes by default with each and every programing language and Collection is one of them. Java Collection is a very big field. It comes with ...
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Memcached Java Client Tutorial using whalin.Memcached-Java-Client and googlecode.xmemcached Libraries

December 7th, 2018 by App Shah

This is continued tutorial on Memcached which is distributed memory object caching server. Here are previous two tutorials before you go over this one :) . How to Install and Configure ...
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How to stop/kill long running Java Thread at runtime? timed-out -> cancelled -> interrupted states

December 6th, 2018 by App Shah 2

Have you ever wondered how to kill long running Java thread? Do you have any of below questions? Kill/Stop a thread after certain period of time Killing thread after some specified ...
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PayPal Java SDK Complete Example – How to Invoke PayPal Authorization REST API using Java Client?

December 6th, 2018 by App Shah

PayPal is one of the best online Payment transfer service out there. There is no doubt it's growing day by day with crazy numbers. I personally have hands on experience with PayPal Java ...
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In Java8 How to join List of Objects? Collectors.joining Concatenates the input Elements, separated by the Delimiter

December 13th, 2018 by App Shah

Collectors.joining() Concatenates the input Elements, separated by the Delimiter with provided Prefix and Suffix values. Yesterday I've published an article on StringJoiner(), ...
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Java: How to Get Random Key-Value Element From HashMap

October 25th, 2018 by App Shah

Is there a way to get the value of a HashMap randomly in Java? Of Course, below is a simple Java Code which represents the same. Also, at the end of program there is a bonus code to ...
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