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

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 ...

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