Here is an example of an Applet that takes parameters:
In fact, for some examples of other java code look in the directory
/opt/java/demo. There does not seem to be any standard set of
Applets that people are using, everybody just writes a different
implementation of the same stuff. Everyone has written a ticker tape,
a lot of people have written asteroids games. If you are not interested
in Java as a language then I suggest that you cruise through the site
listed below to find already finished Java Applets that you can use
in your own web pages. Most people include the source for their applet
and tell you how it should be called.