Where is Java Installed on Mac OS X?

On Mac OS X, the default location for the JDK (Java Development Kit) is /Library/Java/JavaVirtualMachines/jdk<version>.jdk/Contents/Home/, where <version> is the version number of the JDK you have installed.

For example, if you have JDK 8 installed, the default installation location would be /Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home/.

You can check which version of the JDK you have installed by running the following command in a terminal:

/usr/libexec/java_home -V

This will print out a list of all the JDKs that are installed on your system, along with their corresponding version numbers and installation paths.