import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class Test
{
  public static void main(String args[]) 
  {
    // Set up the JFrame
    JFrame jf = new JFrame();
    jf.setSize(200,200);
    jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // A label and a button
    JCheckBox cb = new JCheckBox("dummy");
    JButton b = new JButton();

    // Actions for the button to perform
    Action focused = new AbstractAction(){
        public void actionPerformed (ActionEvent e)
        {
          System.out.println ("I'm Focused");
        }
      };
    Action inWindow = new AbstractAction(){
        public void actionPerformed (ActionEvent e)
        {
          System.out.println ("I'm In Focused Window");
        }
      };
        
    // Register the actions with the key 'a'
    KeyStroke k = KeyStroke.getKeyStroke('a');
    b.registerKeyboardAction(focused, "focused", k, JComponent.WHEN_FOCUSED);
    b.registerKeyboardAction(inWindow, "window", k, JComponent.WHEN_IN_FOCUSED_WINDOW);

    // Add the components to the JFrame and show it
    jf.add(cb, BorderLayout.NORTH);
    jf.add(b, BorderLayout.SOUTH);

    jf.show();
  }
}