You are required to develop text based chat application ( between two users ) . establish connection between server and client. make appropriate gui. proper threading for sending and receiving messages make a server on one computer and client on the other. when client wants to chat; it will send connection request to server. after server acceptance, text based messages can be send and receive between client and server. all sent and received messages should be visible on both ends. provide decent gui; you may consult any messaging application like gtalk, yahoo.