Java is one of those things that you don’t need to download until the moment you do. Most computer users will go about their business without having to download Java for Windows.

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.

If you want to download and install Java JDK 18 on Windows 11/10 computer, you will also have to set up a Path in Environment Variable.

To check which version of Java you have on your Windows computer, you'll need to open the Command Prompt.