public class ChatServer extends EchoServer {

    public ChatServer(int port) {
        super(port);
    }

    public synchronized void receive(String line, Connection c) {
        for (int i = 0; i < num_connections; i++) {
            Connection ci = (Connection)connections.elementAt(i);
            if ((ci != null) && (ci.isAlive())) ci.send(line);
        }
    }

    public static void main(String[] args) {
        new ChatServer(DEFAULT_PORT);
    }
}