instructions
by patrick

1. goto one folder above RMIexample, then do the following commands to compile
    with rmi compiler:
    rmic RMIexample.ChatObjectInterface
    rmic RMIexample.ChatObject
    rmic RMIexample.ServerInterface
    rmic RMIexample.Server

2. start the rmi registry by typing:
    rmiregistry
    (nothing special happens on command line but don't close it!)

3. run Server by right clicking on it and RUN FILE...

3. run Chat ...