JMenu and ActionListener

[sairus]

Why ActionListener works for JMenuItem, for JMenu no?

Listener listen = new Listener();
String[] mmName = {"File","etc"};
/**...**/
for (int i=0; i<mmName.length; i++){
		 mm[i]=new JMenu(mmName[i]); //mmName[i] - String[]
		 mm[i].addActionListener(listen);
}
/**...**/
public class Listener extends setOfMethods implements ActionListener{
	@Override
	public void actionPerformed(ActionEvent e) {
		cmd = e.getActionCommand();
/**...**/
           }
}

thanks

UPD: I solved this. I insert in JMenuBar JMenuItem, not a JMenu. And for JMenuItem add action listener. Looks little strange but working :) And looks more better than insert Jbutton in JMenu.
PS: Sorry for English :o