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 Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.

Many Java applications started from the command line take arguments to control their behavior. These arguments are available in the string array argument passed into the application’s static ...

Disabling Java in OS X requires doing so for each user account; however, even terminal commands for doing this may be a bit impractical to use as a substitute.

Here is a Java install tutorial if that prerequisite is yet to be met. If you are unsure as to whether the JDK is installed — or what version it is — simply open up a command prompt and type java ...