Getting NullPointerException while reading Resource .properties file in Intellij IDE? Do you have an issue loading resources files into your Intellij IDE? Having below errors? Error: Could not …
Java and J2EE Tutorials 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 600+ Java and J2EE tips with additional production ready utilities. Explore all tutorials below.
Introduction to WSDL (Web Service Definition Language) – Sample HelloWorld Tutorial
The Web Services Description Language (WSDL) is an XML-based language that is used for describing the functionality offered by a Web service. A WSDL description of a web service (also referred to as a …
How to Remove Duplicate Elements from CSV or any other File in Java?
Finding a duplicate lines from a file is not a hard problem. But sometime in an interview question, folks sometimes get very confused about the method they have to use. In this tutorial we will go …
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How to convert HashMap to ArrayList in Java?
Here is a simple example on how to convert HashMap to ArrayList in Java. Java Example: [crayon-5fc3f9c8a1b1b949469767/] Output: [crayon-5fc3f9c8a1b1d941309591/] …
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How to create executable .jar file using Linux commands and without Eclipse Shortcut?
So far for me it it was so easy to right click in Eclipse IDE and create executable .jar file with few simple clicks. Last week I had to create executable .jar file manually on my Digital Ocean node …
How to iterate through Java List? Seven (7) ways to Iterate Through Loop in Java
How to iterate through Java List? This tutorial demonstrates the use of ArrayList, Iterator and a List. There are 7 ways you can iterate through List. Simple For loop Enhanced For loop …
Fundamentals of Java Static Method, Class, Variable and Block
What is static in Java? Static keyword can be used with class, variable, method and block.Static members doesn't belong to any of a specific instance.Static members belong to the class only.Once …
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Have you noticed Race Condition in Java Multi-threading Concurrency Example? How to deal with it?
Sometime back I've written an article on Producer Consumer Example and how to handle read/write operation better way in Java. On the similar note, in this tutorial we will discuss something on Race …
How to Create Your Own Non-Blocking, Fixed Size Queue in Java? Same as EvictingQueue
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 queue. Basically we …