code: package keybord.macro.demo;
  
  import javax.swing.JFrame;
  import javax.swing.JLabel;
  import java.awt.event.KeyAdapter;
  import java.awt.event.KeyEvent;
  
  class KeyboardMacroDemo {
      public static void main( String [] args ) {
          final JFrame frame = new JFrame();
  
          String directions = "<html><b>Ctrl-S</b> to show frame title<br>"
                                   +"<b>Ctrl-H</b> to hide it</html>";
  
          frame.add( new JLabel(directions));
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
          frame.addKeyListener( new KeyAdapter(){
              public void keyReleased( KeyEvent e ) {
                  if( e.isControlDown() && e.getKeyCode() == KeyEvent.VK_S){
                      frame.setTitle("Hello there");
                  }else if( e.isControlDown() && e.getKeyCode() == KeyEvent.VK_H){
                      frame.setTitle("");
                  }
              }
          });
          frame.pack();
          frame.setVisible(true);
      }
  }
  