dkim18
asked on
JMenu and invoking close the window
I created JFrame in the applet, but JMenu is on applet.(It supposed to be on JFrame.)
The following is my code segment.
--------------------------
public class LibraryApplet extends JApplet implements ActionListener{
…
…
public void init() {
myFrame = new JFrame();
contentPane = myFrame.getContentPane();
layout = new GridBagLayout();
contentPane.setLayout(layo
constraints = new GridBagConstraints();
…
…
JMenu fileMenu = new JMenu("File");
JMenuItem exitItem = new JMenuItem("Exit");
fileMenu.add(exitItem);
JMenuBar bar = new JMenuBar();
setJMenuBar(bar);
bar.add(fileMenu);
myFrame.pack() ;
}
--------------------------
Another question is that top-level window(JFrame) has a File menu containing a menu item "Exit". When "Exit" is invoked the application will close the window (the user sees an empty applet page with just the title and header)
How do I implement the above "Exit" behavior?
Thank you for help
The following is my code segment.
--------------------------
public class LibraryApplet extends JApplet implements ActionListener{
…
…
public void init() {
myFrame = new JFrame();
contentPane = myFrame.getContentPane();
layout = new GridBagLayout();
contentPane.setLayout(layo
constraints = new GridBagConstraints();
…
…
JMenu fileMenu = new JMenu("File");
JMenuItem exitItem = new JMenuItem("Exit");
fileMenu.add(exitItem);
JMenuBar bar = new JMenuBar();
setJMenuBar(bar);
bar.add(fileMenu);
myFrame.pack() ;
}
--------------------------
Another question is that top-level window(JFrame) has a File menu containing a menu item "Exit". When "Exit" is invoked the application will close the window (the user sees an empty applet page with just the title and header)
How do I implement the above "Exit" behavior?
Thank you for help
SOLUTION
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ASKER
When "Exit" is invoked the application will close the window (the user sees an empty applet page with just the title and header)
myFrame.hide();
Add this to your code and see if it helps:
myFrame.setDefaultCloseOpe
myFrame.setDefaultCloseOpe
Ignore my last comment. objects is right. You need to call JFrame.hide(). You also need to add action listener to your exit menu item:
exitItem.addActionListener
new ActionListener() {
public void actionPerformed(ActionEven
((JFrame)e.getSource()).hi
}
}
);
exitItem.addActionListener
new ActionListener() {
public void actionPerformed(ActionEven
((JFrame)e.getSource()).hi
}
}
);
The window shouldn't be disposed cause the next time the applet is loaded the same window is used.
ASKER CERTIFIED SOLUTION
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Oh ya, that was a mistake. :-)
ASKER
objects
superb!
superb!
How do you want the "Exit" behaviour to be like?