help with GUI assign a keystroke

I see where you create the MenuItem (a1) .. I see where you add the MenuItem into the Menu .. and I see where you add the Menu into the JMenuBar.. But I *don't* see where you add an action listener to a1. Maybe I'm missing it, but have you done that? A MenuItem won't do anything unless it has some objects listening for it.

You would need to add an a1.addActionListener( <action listener in here> )

JJCoolBa at 2007-7-12 8:25:41 >

You shouldn't need to code out a new action listener.. You already have one in your code.

class exitListener implements ActionListener {

public void actionPerformed(ActionEvent arg0) {

int x = JOptionPane.showOptionDialog(GUIMenu.this, "Exit Program?",

"Exit Request", JOptionPane.YES_NO_OPTION,

JOptionPane.QUESTION_MESSAGE, null, null,

JOptionPane.NO_OPTION);

if (x == JOptionPane.YES_OPTION) {

GUIMenu.this.dispose();

}//close the if statement

}//close public void actionPerformed

}//close the class exitListener

You simply need to register an instance of that class as a listener to the menu item.

a1.addActionListener(new exitListener());

JJCoolBa at 2007-7-12 8:25:41 >

I have one more question to ask...

I want to add another listener which would open another window.

How do I do that. I have looked for it in my Java book, but I can not find any info on it.

I would like to place on JMenuItem f2

JMenuItem f1 = new JMenuItem("New");

f1.setMnemonic(KeyEvent.VK_N);

f1.getAccessibleContext().setAccessibleDescription(

"If this was working you could open a new file");

JMenuItem f2 = new JMenuItem("Open");

f2.setMnemonic(KeyEvent.VK_O);

[b]f2.addActionListener(Don't know what is next);[/b]

Project name would be FormatFrame2.java

Thanks

SandyR

Message was edited by:

SandyRed

Message was edited by:

SandyRed

SandyReda at 2007-7-12 8:25:41 >

Taking your advice I did this but it is not working when I select File menu Open.

here is my code

public class GUIMenu extends JFrame {

public GUIMenu() {

super("FeedBar 2");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Build first menu in the menu bar.

JMenuItem f1 = new JMenuItem("New");

f1.setMnemonic(KeyEvent.VK_N);

f1.getAccessibleContext().setAccessibleDescription(

"If this was working you could open a new file");

JMenuItem f2 = new JMenuItem("Open");

f2.setMnemonic(KeyEvent.VK_O);

f2.addActionListener(new labelListener());//loads/sets the listener

JMenuItem f3 = new JMenuItem("Exit");

f3.setMnemonic(KeyEvent.VK_E);

f3.addActionListener(new exitListener());//loads/sets the listener

//Build second menu in the menu bar.

JMenuItem e1 = new JMenuItem("Copy");

e1.setMnemonic(KeyEvent.VK_C);

JMenuItem e2 = new JMenuItem("Cut");

e2.setMnemonic(KeyEvent.VK_X);

JMenuItem e3 = new JMenuItem("Paste");

e3.setMnemonic(KeyEvent.VK_P);

//Build third menu in the menu bar.

JMenuItem a1 = new JMenuItem("Close");

a1.setMnemonic(KeyEvent.VK_D);

a1.addActionListener(new exitListener());//loads/sets the listener

//Create the menu bar.

JMenuBar menubar = new JMenuBar();

//Build the first menu.

JMenu menu = new JMenu("File");

menu.add(f1);

menu.add(f2);

menu.addSeparator();

menu.add(f3);

menubar.add(menu);

//Build the Second menu.

JMenu menu2 = new JMenu("Edit");

menu2.add(e1);

menu2.add(e2);

menu2.add(e3);

menubar.add(menu2);

//Build the Third menu.

JMenu menu3 = new JMenu("Close the program");

menu3.add(a1);

menubar.add(menu3);

// prepare user interface

JTextArea edit = new JTextArea(8, 40);

JScrollPane scroll = new JScrollPane(edit);

BorderLayout bord = new BorderLayout();

setLayout(bord);

add("Center", scroll);

setJMenuBar(menubar);

pack();

setVisible(true);

}

//inner class Section used for exit on menu 3 for fun

class exitListener implements ActionListener {

public void actionPerformed(ActionEvent arg0) {

int x = JOptionPane.showOptionDialog(GUIMenu.this, "Exit Program?",

"Exit Request", JOptionPane.YES_NO_OPTION,

JOptionPane.QUESTION_MESSAGE, null, null,

JOptionPane.NO_OPTION);

if (x == JOptionPane.YES_OPTION) {

GUIMenu.this.dispose();

}//close the if statement

}//close public void actionPerformed

}//close the class exitListener

class labelListener implements ActionListener {

public void actionPerformed(ActionEvent arg0) {

String[] formats = { "Atom", "RSS 0.92", "RSS 1.0", "RSS 2.0" };

JComboBox formatBox = new JComboBox();

JPanel pane = new JPanel();

JLabel formatLabel = new JLabel("Output formats:");

pane.add(formatLabel);

for (int i = 0; i < formats.length; i++)

formatBox.addItem(formats[i]);

pane.add(formatBox);

add(pane);

setVisible(true);

}

}

public static void main(String[] arguments) {

GUIMenu frame = new GUIMenu();

}

}

SandyR

SandyReda at 2007-7-12 8:25:41 >