Anyone involved with technology should remember all the hype about Java.
Java is basically a object-oriented programming language that is suppose to work on all operating systems,
which means it can be executed on Windows, Mac, Unix, and everything else.
On this site, games made in Java are call applets
Applets, unlike full applications, can be run directly on a web browser.
Because of this, many security features were implemented into Java.
This limited Java applets from performing many tasks that may damage your computer
which is a good thing for the users.
To play a game made in Java, you will need a Java enabled Browser or download the lastest Java Plugin
so you can run Java applets written in the lastest versions of the language.