How can I do full screen in Java on OSX

Question

I\'ve been trying and failing to use the java full screen mode on the primary display of an OSX system. Whatever I\'ve tried I can\'t seem to get rid of the \'apple\' menu

Answer 1

Thats a bit pedantic, the answer is to follow the tutorial completely, which has the essentials and is somewhat more expansive than would fit in a post. The above sample does not work because it is missing a validate(); and some content. I suspect the Java Tutorial will not disappear any time soon. Below is a modified version

package test;

import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class FullScreenFrame extends JFrame implements KeyListener {

    public FullScreenFrame () {
        addKeyListener(this);
        setUndecorated(true);
        GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();

    if (gd.isFullScreenSupported()) {
        try {
            this.getContentPane().addKeyListener(this);
            this.getContentPane().setLayout(new BorderLayout());
            this.getContentPane().add("Center", new JLabel("Full Screen, back to normal in 10 seconds"));
            gd.setFullScreenWindow(this);
            validate();
            try {
                Thread.sleep(10000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        } finally {
            gd.setFullScreenWindow(null);
        }
    } else {
        System.err.println("Full screen not supported");
    }

}

public void keyTyped(KeyEvent e) {
    System.out.println("keyTyped:" +  e.getKeyChar() + "source:"  + e.getSource() );
}
public void keyPressed(KeyEvent e) {
    System.out.println("keyPressed:" + e.getKeyChar() + "source:"  + e.getSource() );
}
public void keyReleased(KeyEvent e) {
    System.out.println("keyReleased:" + e.getKeyChar() + "source:"  + e.getSource() );
       setVisible(false);
        dispose();
    }

    public static void main (String [] args) {
        new FullScreenFrame();
    }
}