Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

You can check which Java version is on your Mac to see if you have the most up-to-date Java running, or you can check on the Java website.

The next time you need to examine command line arguments and things get a little complex, whip out your trusty open source Java toolkit, and use Command Line Interface (CLI).