Dejarik is a fictional game from the Star Wars universe. More about dejarik in Wookieepedia
The rules used for this version can be found here.
It can play human Vs Human or Human Vs IA, IA has 3 different levels.
Here is the applet version, it also has an Application version in the same package.
You can also download the sources from CVS or even the full packet as a eclipse project