menuKeyTyped and menuKeyReleased methods do not work. - Java

Try this simplified one:
----------------------------------------------------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class MenuEnterKey extends JFrame
implements MenuKeyListener, ItemListener{

JLabel l = new JLabel();
JLabel a = new JLabel("Enter Loan Amount");
JLabel pay = new JLabel("");

ButtonGroup group0 = new ButtonGroup( );

JRadioButtonMenuItem year7 = new JRadioButtonMenuItem("7 Years at
5.35%");
JRadioButtonMenuItem year15 = new JRadioButtonMenuItem("15 Years at
5.5%");
JRadioButtonMenuItem year30
= new JRadioButtonMenuItem("30 Years at 5.75%",true);

Container pane;

public MenuEnterKey(){
super("Loan Payment");
setSize(300, 200);
setLocation(200, 200);
setDefaultCloseOperation(EXIT_ON_CLOSE);

JMenuItem quitItem = new JMenuItem("Exit");

year30.addMenuKeyListener(this);

year7.addItemListener(this);
year15.addItemListener(this);
year30.addItemListener(this);

JMenu menu1 = new JMenu("Select a Term");
menu1.setMnemonic('S');
year7.setMnemonic('7');
year15.setMnemonic('1');
year30.setMnemonic('3');

group0.add(year7);
menu1.add(year7);
group0.add(year15);
menu1.add(year15);
group0.add(year30);
menu1.add(year30);
menu1.addSeparator( );
menu1.add(quitItem);

// create a menu bar and use it in this JFrame
JMenuBar menuBar = new JMenuBar();
menuBar.add(menu1);

JPanel p1 = new JPanel();
JPanel p2 = new JPanel();
FlowLayout flo = new FlowLayout(FlowLayout.LEFT,10,20);
BorderLayout brd = new BorderLayout(5,5);
pane = getContentPane();
p1.setLayout(brd);
p2.setLayout(flo);
pane.setLayout(flo);
pane.add(l);
pane.add(p2);
pane.add(p1);
setJMenuBar(menuBar);
}

public void menuKeyTyped(MenuKeyEvent e){
System.out.println("type " + e.getKeyText(e.getKeyCode()));
}

public void menuKeyReleased(MenuKeyEvent e){
System.out.println("release " + e.getKeyText(e.getKeyCode()));
}

public void menuKeyPressed(MenuKeyEvent e){
System.out.println("press " + e.getKeyText(e.getKeyCode()));
}

public void itemStateChanged(ItemEvent e) {
if (e.getSource() == year7){
l.setText("Selected Term is 7 years.");
}
else if (e.getSource() == year15){
l.setText("Selected Term is 15 years.");
}
else if (e.getSource() == year30){
l.setText("Selected Term is 30 years.");
}
}

public static void main(String[] args){
MenuEnterKey f= new MenuEnterKey();
f.setVisible(true);
}
}
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Thanks a lot.

Do you know why when I press the Enter key on one menu item, the other
two menu items also receive the Enter key?

It looks like the menuKeyPressed() method works with the Enter key and
the space key and the menuKeyTyped() and released method do not work
with these two keys. Why?

According to the API documentation, ...typed()
method should work only for keys having characters.
[Enter], [F1] etc. do not have characters.

> I press the Enter key on one menu item
You press it on the menu, not on a particular menu item.