Help with GUI project.

Question

I need help with JcomboBox when I select the Exit in the File box it will open
//inner class
class exitListener implements ActionListener {
I have the part of the parts of statement but I don't know how to assign the Keystoke. here is that part of the code
filemenu.setMnemonic(KeyEvent.VK_X);Here is my code...
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class MyFrame extends JFrame {
     String[] file = { "New", "Open", "Exit" };//items for file
    String[] edit = { "Cut", "Copy", "Paste" };//items for edit
    JComboBox filemenu = new JComboBox();
    JComboBox editmenu = new JComboBox();
     public MyFrame(String title) {
          super(title);
          this.setSize(250, 250); //sets the size for the frame
          this.setLocation(200, 200);//location where frame is at
          this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          // setup contents
          makeComponents();
          initComponents();
          buildGUI();
          // display
          this.setVisible(true);
     private void makeComponents() {
          JPanel pane = new JPanel();
//          file menu section
          filemenu = new JComboBox();
        JLabel fileLabel = new JLabel();
        pane.add(fileLabel);
        for (int i = 0; i < file.length; i++)
             filemenu.addItem(file);
pane.add(filemenu);
add(pane);
setVisible(true);
//edit menu section
editmenu = new JComboBox();
JLabel editLabel = new JLabel();
pane.add(editLabel);
for (int i = 0; i < edit.length; i++)
     editmenu.addItem(edit[i]);
pane.add(editmenu);
add(pane);
setVisible(true);
     private void initComponents() {
          filemenu.addActionListener(new exitListener());
     //inner class
class exitListener implements ActionListener {
public void actionPerformed(ActionEvent arg0) {
int x = JOptionPane.showOptionDialog(MyFrame.this, "Exit Program?",
"Exit Request", JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE, null, null,
JOptionPane.NO_OPTION);
if (x == JOptionPane.YES_OPTION) {
MyFrame.this.dispose();
     private void buildGUI() {
          Container cont = this.getContentPane();// set gui components into the frame
          this.setLayout(new FlowLayout(FlowLayout.LEFT));// Comp are added to the frame
          cont.add(filemenu);
          cont.add(editmenu);
     // / inner classes
public class ButtonFrame {
     public static void main(String[] args) {
          MyFrame f1 = new MyFrame("This is my Project for GUI");
Thanks
SandyR.

Answer 1

One way is to
1) pass a reference of the Window object to the USDListener class, and set a local Window variable say call it window, to this reference.
2) Give the Window class a public method that returns a String and allows you to get the text from USDField. Same to allow you to set text on the euroField.
3) Give the Listener class a Converter object.