Multithreaded Server and Multithreaded Client

This is a java based program that has a multithread supported server as well as client.

It has the following functionalities:

1. The Server can connect to multiple clients.
2. The Server can receive multiple messages from different clients without waiting.
3. The clients can receive response from server without being in holding state.
4. The Server can broadcast messages to all clients.
5. The Server can send message to a specific client as well.
6. The Server can save data in a file.