JAVA_HOME is an operating system environment variable that directs a user to the file system location where the JDK or JRE was installed.

This environment variable lives on in Windows 10 as a way to tell the system where to look when you try to run a command. Normally, the system looks in the Windows folder and its System32 subfolder.

A PATH variable stores directory shortcuts. Learn How to add, modify or edit a PATH Environment Variable in Windows 11/10.

The default-java folder is a symbolic link to the actual location of the JDK install on Ubuntu. When you reference the JDK install location in applications or in environment variables such as ...