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

public class FullScreenFrame extends JFrame implements KeyListener {

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

    	if (gd.isFullScreenSupported()) {
    		try {
    			gd.setFullScreenWindow(this);
    		}
    		finally {
    			gd.setFullScreenWindow(null);
    		}
    	}
    	else {
    		System.err.println("Full screen not supported");
    	}

    	setVisible(true);
    }

    public void keyTyped(KeyEvent e) {}
    public void keyPressed(KeyEvent e) {}
    public void keyReleased(KeyEvent e) {
    	setVisible(false);
    	dispose();
    }

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

try {
        gd.setFullScreenWindow(this);
}
finally {
        gd.setFullScreenWindow(null);
}

public FullScreenFrame() {
    addKeyListener(this);

    GraphicsDevice gd =
            GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();

    if (gd.isFullScreenSupported()) {
        setUndecorated(true);
        gd.setFullScreenWindow(this);
    } else {
        System.err.println("Full screen not supported");
        setSize(100, 100); // just something to let you see the window
        setVisible(true);
    }
}