Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and ...

If you’ve read my Java 101 tutorial introducing static classes and inner classes, you should be familiar with the basics of working with nested classes in Java code.

The Java Function interface is quite simple. It takes a single Java object as an argument, and returns a single Java object when the method concludes. Any method you can conjure up takes an object and ...

There is a simple Maven Checkstyle plugin, and the Checkstyle plugins for Eclipse, NetBeans and IntelliJ enable it to easily integrate into all of the most popular Java IDEs. The Checkstyle plugin for ...