import javax.swing.JOptionPane;
public class UsesDemo extends JOptionPane
{
public UsesDemo() 
   {
   JOptionPane.showMessageDialog(null, "USES JOptionPane");

   JOptionPane  myMenus = new JOptionPane();
	myMenus.showMessageDialog(null, "HAS a JOptionPane");
	
   showMessageDialog(null, "IS a JOptionPane");

   } // end constructor
public static void main( String args [] )
   {
   UsesDemo  app  =  new  UsesDemo();
   } // end main
} // end class