Java Swing

[jduk]

I want to combine as a GUI, a menu, a toolbar and a page which loads files. I have a class called 'MenuBar' with my menu in it, but when i run the code below, I get a runtime error saying that I cannot add a window (presumbaly my menu is a window) to a container. So how do I combine all these different components (i.e. menu's toolbars, windows etc)?



class MainWindow
extends JFrame
implements ActionListener

{



public MainWindow(){


MenuBar menubar = new MenuBar();

JFrame frame = new JFrame("Main Window");
JPanel panel = new JPanel();
frame.setSize(400,400);
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.getContentPane().add(menubar);
frame.pack();
frame.show();

}


public void actionPerformed( ActionEvent event )
{
System.out.println( event );
}


public static void main (String args[]){

MainWindow window = new MainWindow();


}

}

 

[vkarthik]

To set a menu bar, u shouldnot use add() method. Use setJMenuBar method instead.

LOL A ship is safe in the harbour, but that's not what it is meant for!!! LOL