ServerSockets and class that Extends Thread help

[tkforever]

So basically, i have a PrintWriter and BufferedReader object for each socket. But when I want to go and get user input from telnet client I am getting a null pointer exception. I pass in the writer and reader objects. But should I be passing in the socket into my methods and then creating these streams using the socket object, and then close those streams when the method is done?

any help or comments
thanks

 

[sedj]

Yes, your server code should be along these lines :

public class PortListener {
	public void listen() {
		try {
			ServerSocket ss = new ServerSocket(5555);
			System.err.println("[PortListener] attached to port:5555");
			while (true) {
				new PortListenerHandler(ss.accept()).start();
			}
		} catch (IOException ioe) {
			ioe.printStackTrace(System.err);
		}
	}
	class PortListenerHandler extends Thread {
		Socket s = null;

		public PortListenerHandler(Socket s) {
			this.s = s;
		}

		public void run() {
                  // get IO streams here ...
                }
        } 
}