Do you have any Java programming experience? Have
you started your project (assignment?) and if so have
you reached a problem which is causing you to be
unable to continue?
There are a lot of tutorials
on the web about Java applet  programming. Try going
to http://www.google.com/ and
searching for java
applet tutorial.
I doubt that anyone here will do
your work for you but we would all be happy to answer
any specific questions you
have.