Java™ How to Program, Seventh Edition

24.6. Client/Server Interaction with Stream Socket Connections

Figures 24.5 and 24.7 use stream sockets to demonstrate a simple client/server chat application. The server waits for a client connection attempt. When a client connects to the server, the server application sends the client a String object (recall that Strings are Serializable objects) indicating that the connection was successful. Then the client displays the message. The client and server applications each provide textfields that allow the user to type a message and send it to the other application. When the client or the server sends the string "TERMINATE", the connection terminates. Then the server waits for the next client to connect. The declaration of class Server appears ...