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I really don't have a good clue on how to make them communicate well and talk back and fourth. This is what i have for my client so far
the client is suppose to display in a frame with buttons for add, clear and remove. There server is all written i just am unsure on how to define everyhting in the client, maybe some help with links to examples or something. Thanks for bearing with me.
Generally, the server application sits on a fixed network port waiting for connections from client applications. The client application then connects to the server, at a known ip address, and at the known port... I say "generally", because it is reversed with some protocols.
Since I don't know how your server was written, I will just assume that it uses the ServerSocket class. In this case, you should not use the ServerSocket class class, you should used the Socket class.
Define a Socket with the IP address and port of your server. Establish a connection via the connect() method. Get the input and output streams, via the getInputStream() and getOutputStream() methods. And use those streams to read and write to the server.