Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Learn how to use Java annotations to associate metadata with classes, methods, and other application elements in your Java programs.

There are three simple ways to set JAVA_HOME in Windows. This tutorial shows you how to do it manually, from the command line and through the installer.

Using generics results in more robust code and avoids ClassCastExceptions in your Java programs. This in-depth tutorial introduces you to generics and their types and methods.

Java’s var keyword Packaged as part of the 2018 version 10 release, the Java var reserved word introduced type inference to the strongly typed Java programming language.

To clear the Java cache, open the Java control panel, which you can find in the Windows Control Panel or in System Preferences on a Mac.