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

public class D2 extends JFrame 
{
   int numClicks = 0;
   JLabel label = new JLabel("Número de clics de botones: " + numClicks);
   JPanel pane = new JPanel();
   JButton button = new JButton("¡Soy un botón Swing!");
   JMenuBar menuBar;
   JMenu fileMenu, editMenu;

   D2 ()
   {
      super ("SwingApplication");
      pane.setLayout(new GridLayout(0, 1));
      pane.add(button);
      pane.add(label);
      this.getContentPane().add(pane, BorderLayout.CENTER);
      menuBar = new JMenuBar();
      setJMenuBar(menuBar);

      fileMenu = new JMenu ("Archvo");
      fileMenu.add (new JMenuItem ("Abrir"));
      fileMenu.add (new JMenuItem ("Guardar"));
      fileMenu.add (new JMenuItem ("Salir"));

      editMenu = new JMenu ("Editar");
      editMenu.add (new JMenuItem ("Copiar"));
      editMenu.add (new JMenuItem ("Pegar"));
      menuBar.add (fileMenu);
      menuBar.add (editMenu);
   }

   public static void main(String[] args) 
   {
      D2 frame = new D2();
      frame.pack();
      frame.setVisible(true);
   }
}