Nao funciona o menu no actionlistener

Alguem pode me ajudar!
Nao esta funcionando o menu para acionar outro evento.
//Desk.java

import javax.swing.;
import javax.swing.JMenuItem.
;
import java.awt.event.;
import java.awt.event.ActionEvent.
;
import java.awt.event.ActionListener.*;

import java.awt.*;
//import java.awt.event.ActionEvent;

public class Desk extends JFrame implements ActionListener {
public JMenuItem CadOper,CadPrest;
public JMenu fileCad;

public Desk(){
	super();
	Container framePane = this.getContentPane();

///Criando Frames internos
JInternalFrame if1= new JInternalFrame(“Um”,true,true,true);
// JInternalFrame if2= new JInternalFrame(“Dois”,true,true,true);
if1.getContentPane().add(new JEditorPane());
// if2.getContentPane().add(new JEditorPane());
if1.setBounds(30,30,250,200);
// if2.setBounds(30,30,250,200);
if1.setVisible(true);
// if2.setVisible(true);

///Termino de frames internos
///Criacao do Menu Bar
JMenuBar jmb = new JMenuBar();

	JMenu fileCad = new JMenu("Cadastros");
	fileCad.addActionListener(this);
	JMenuItem CadOper = new JMenuItem("Operadoras");
	CadOper.addActionListener(this);
	CadOper.setMnemonic(KeyEvent.VK_N);
		JMenuItem CadPrest = new JMenuItem("Prestadores");
	CadPrest.addActionListener(this);
		JMenuItem CadProcess = new JMenuItem("Processos");
//	CadProcess.addActionListener(this);	
	fileCad.add(CadOper);	
	fileCad.add(CadPrest);	
	fileCad.add(CadProcess);

	JMenu fileDigit = new JMenu("Digitacao");
	JMenuItem DigitConsulta = new JMenuItem("Consultas");
//	CadOper.addActionListener(this);
		JMenuItem DigitSadt = new JMenuItem("SADT");
//	CadPrest.addActionListener(this);
	fileDigit.add(DigitConsulta);	
	fileDigit.add(DigitSadt);	

// jmb.addActionListener( this );

	jmb.add(fileCad);
	jmb.add(fileDigit);
	setJMenuBar(jmb);	

////Termino do Menu bar

///Criando Frame Principal
JDesktopPane dtp = new JDesktopPane();
dtp.add(if1);
//dtp.add(if2);
dtp.add(jmb);

	framePane.add(BorderLayout.CENTER, dtp);
	this.setTitle("Digitacao Consulta - TISS v1.0 ");
	//this.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
	this.getRootPane().setBorder(BorderFactory.createLineBorder(Color.cyan,4));
	this.getContentPane().setBackground(Color.lightGray);
	//this.setDefaultCloseOperation(EXIT_ON_CLOSE);
	//this.getContentPane().setLayout(null);
	this.setSize(800,600);
	this.setVisible(true);	

///Fechando Frame

	getContentPane().add(dtp);
}
 public void actionPerformed(ActionEvent e) {
 	if (e.getSource()==CadOper)
	{
		JOptionPane.showMessageDialog(null,"voce clicou Cadastrar!","message",0);
	}
  if (e.getSource()==CadPrest)
	{
		JOptionPane.showMessageDialog(null,"voce clicou Cadastrar!","message",0);
	}
}        

public static void main(String arg[])
{
	new Desk().show();
}

}

Ola,

Não duplique topicos:

http://www.portaljava.com/home/modules.php?name=Forums&file=viewtopic&t=39037