Runnable r = new Runnable(){
            public void run(){
                System.out.print("Gaston.");
            }
        };
        SwingUtilities.invokeLater(r);
        try{sleep(1000);}catch(Exception ex){}
        System.out.print("Alphonse.");

        Runnable r = new Runnable(){
            public void run(){
                System.out.print("Gaston.");
            }
        };        
        try{
                        SwingUtilities.invokeAndWait(r);
                        sleep(1000);
                }catch(Exception ex){}
        System.out.print("Alphonse.");