My JMenu Bar is not showing up

Question

My JMenuBar is not showing up when i run my App. How can I fix this??

So when I run my JFrame I need to see my JMenuBar on top.

my Layout is Null

Code:

package view;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.WindowConstants;


public class Home extends JFrame {

    private Container window = getContentPane();

    public Home(){
        initGUI();  
    }

    public void initGUI(){

        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);        
        setPreferredSize(new Dimension(800, 600));
        setLayout(null);

        JMenuBar menu = new JMenuBar();
        JMenu file = new JMenu("File");
        menu.add(file);
        window.add(menu);



        pack();

    }
    }

unrelated, but important: never-ever do any manual sizing/locating (aka: null Layout) Don't forget to read and understand the tutorial referenced in the swing tag wiki - it'll answer such basic questions :-) — kleopatra, Nov 08 '12 at 12:11

score 3 · Answer 1 · answered Nov 08 '12 at 11:11

3

you not added JMenuBar to the JFrame
use setJMenuBar(menu);

answered Nov 08 '12 at 11:11

mKorbel

109,525
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but i did: window.add(menu); – user1809035 Nov 08 '12 at 11:38
in this case JMenuBar doesn't returns PreferredSize, then its size is 0,0 – mKorbel Nov 08 '12 at 11:45

score 1 · Answer 2 · answered Nov 08 '12 at 11:13

1

Instead of add(menu) call

setJMenuBar(menu);

Also you better use SwingUtilities.invokeLater()

answered Nov 08 '12 at 11:13

Nikolay Kuznetsov

9,467
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My JMenu Bar is not showing up

2 Answers2