My menu bar dissapears

Question

Hi all.
I am writing a GUI interface to diplay images in an Jpanel.
Now this may seem stupid but when I load my GUI, my menu bar with MenuItems dissapears however can still see the panel the menubar is enclosed in. I have the following code segments
public class myappGUI extends JFrame implements ActionListener
Image original = Toolkit.getDefaultToolkit().getImage("pic.jpg");
JPanel imageCanvas = new JPanel();
public appGUI()
Container contentPane = getContentPane();
...... /* setting up menubar stuff using JMenuBar and adding
JMenu Items to it*/
...... /* add window listeners and action listeners */
contentPane.setLayout(new BorderLayout());
menubar.add(fileMenu);
menubar.add(settingsMenu);
menubar.add(helpMenu);
contentPane.add(menubar,BorderLayout.NORTH);
contentPane.add(imageCanvas, BorderLayout.CENTER);
imageCanvas.setBackground(Color.white);
} // end appGUI
public void actionPerformed(ActionEvent menuEvent)
getting menu actions and doing stuff with them
public void paint(Graphics g)
g.drawImage(original,200,200,imageCanvas);
} // end myappGUI
Now when I execute this app a window comes up with the menubar greyed out, The panel is there as I've set the color to red (not in segment of above code)and no Image. When I minimise the window and then maximise it, the image now appears but everything has now dissapeared. Just get image and grey background.I know with all this GUI stuff that everything gets layered, obviously I'm getting confused with the basic concepts.
So the question is what do I need to do so that when I execute this app all my components such as menu bar and panel appear intact with the image displayed in the panel. I've tried adding a desktopPane to the ContentPane and added an internal frame to the desktopPane ( I know its a bit confusing) which contains a panel and tried to draw the image there. However I still get the same result (slightly different but same in essence).
Any Advice wouldbe greatly appreciated
Cheers Dennis

Answer 1

Hi Denis.
Cool name : ) -> anyway thanks for your input. I actually tried the setJMenuBar(menubar) and stil got the same out put. But I think I have figured it out by creating another class and extending Jpanel and doing the painting from within.
Cheers anyway Dennis
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contentPane.add(menubar,BorderLayout.NORTH);instead of this use setJMenuBar(menubar)
public void paint(Graphics g)
g.drawImage(original,200,200,imageCanvas);Do not paint anything on JFrame, paint on canvas or
use JLabel with image so it paints everything
automatically. See SwingSet2 demo sources for
examples.
Denis