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.

Did you know that you can set temporary environment variables in Linux? Learn how to get started with our guide and video tutorial.

How to add temporary environment variables The terminal can be used on Ubuntu to execute powerful commands, including commands to set up custom environment variables.

Setting the PATH variable allows you to launch programs via CLI from anywhere on your system. Here's how to set the PATH variable in Windows and make the most of it.

This post explains how to use variables in Java. Learn the primitive types (and what that means) and just why variables are so important for any coding!

Method and variable handles vs. Java reflection To truly understand MethodHandles and VarHandles —what they do and why they are useful—it’s helpful to know a few things about reflection in Java.

Java is an object-oriented programming language, but there’s more to Java than programming with objects. This tutorial is the first of several introducing non-object-oriented features and syntax ...