...This is not sufficient when talking about large applications, but, let's not forget that HTTP uses Strings.
The project contains both the Server and the Client. The main method in the Main class does nothing. You must launch the Server (ServerMain) and several instances (or just one) of the Client (ClientMain).
To deconnect a client just send "exit".
This is a series of *.java Classes for making programming tasks simpler, much like Apache Commons. Included in this src package is an Advanced Randomizer, TStringList Clone From Delphi, an Algorithem Class, and Method MultiTask Better than Runnables.