Button disabled due to server waiting

Question

i had made a GUI for running a rmi server and instantiating a multicast server.
i used a button for each purpose.
the rmi server keeps waiting for any requests from the client side.
so the execution of the other part of the program is disabled when i press the first button for running the rmi server.
the button for running multicast server is disabled. i cannot access it
//first button
private void clicked(java.awt.event.ActionEvent evt) {                        
        GoodWindowsExec obj4= new GoodWindowsExec();
        obj4.running("start rmiregistry");
        obj4.running("javac SampleServerImpl.java");
        obj4.running("java SampleServerImpl");
//second button     
  private void retrieve(java.awt.event.ActionEvent evt) {                        
        GoodWindowsExec obj5= new GoodWindowsExec();
        obj5.running("javac MulticastClient.java");
        obj5.running("java MulticastClient");
    }                        what should be done?

Answer 1

Use Threads. Read the section from the Swing tutorial on Concurrency for more information.