Disable Menuitem in Java Swing Example

import java.awt.*;


import javax.swing.*;


import java.awt.event.*;


public class JavaExampleMenuDisableInJApplet extends JApplet implements ActionListener


      {


         JMenuBar MnuBar = new JMenuBar();


         JMenu MnuOne = new JMenu("File");


         JMenu MnuTwo = new JMenu("Edit");


         JMenuItem MnuItmOne = new JMenuItem("New..."),


         MnuItmTwo = new JMenuItem("Open..."),


         MnuItmThree = new JMenuItem("Exit"),


         MnuItmFour = new JMenuItem("Disable Bottom Item"),


         MnuItmFive = new JMenuItem("Enable Bottom Item"),


         MnuItmSix = new JMenuItem("Enabled Item");


         public void init()


          {


             MnuOne.add(MnuItmOne);


             MnuOne.add(MnuItmTwo);


             MnuOne.addSeparator();


             MnuOne.add(MnuItmThree);


             MnuItmOne.setActionCommand("You Choose New");


             MnuItmTwo.setActionCommand("You Choose Open");


             MnuItmOne.addActionListener(this);


             MnuItmTwo.addActionListener(this);


             MnuTwo.add(MnuItmFour);


             MnuTwo.add(MnuItmFive);


             MnuTwo.add(MnuItmSix);


             MnuItmFour.setActionCommand("You Choose Cut");


             MnuItmFive.setActionCommand("You Choose Copy");


             MnuItmFour.addActionListener(this);


             MnuItmFive.addActionListener(this);


             MnuBar.add(MnuOne);


             MnuBar.add(MnuTwo);


             setJMenuBar(MnuBar);


           }


             public void actionPerformed(ActionEvent e1)


               {


                   JMenuItem MnuItm = (JMenuItem)e1.getSource();


                   if(MnuItm == MnuItmFour)


                  {


                          MnuItmSix.setText("Disabled Item");


                          MnuItmSix.setEnabled(false);


                      }


                          if(MnuItm == MnuItmFive)


                        {


                                MnuItmSix.setText("Enabled Item");


                                MnuItmSix.setEnabled(true);


                            }


              }


 }


/*<APPLET  CODE = JavaExampleMenuDisableInJApplet.class WIDTH = 350  HEIGHT = 280 ></APPLET>*/