Re: JPanels on Layered Pane don't appear where i want.

/*I set the frame using setBounds() method. Is it posible to use
layout to set frame position? And if so, how to do it.
WORKING CODE: */

package grafika;

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

public class Menu extends JPanel

{
private static JFrame frame;
private JLayeredPane layeredPane;
private JPanel panelMenu;
private static final int SCREEN_WIDTH=600, SCREEN_HEIGHT=600;
private int rozmiarPanela;

public Menu() {
layeredPane = new JLayeredPane();
layeredPane.setPreferredSize(new Dimension(SCREEN_WIDTH,
SCREEN_HEIGHT));

rozmiarPanela = 600;

Point origin = new Point(0, 0);

panelMenu = createColoredPanel(origin);
layeredPane.add(panelMenu, new Integer(4),0);

this.add(layeredPane);

}

private JPanel createColoredPanel(Point origin){
JPanel panel =new JPanel(new GridBagLayout());
panel.setOpaque(true);
panel.setVisible(true);
panel.setBackground(Color.black);
panel.setBounds(origin.x, origin.y-5, rozmiarPanela , rozmiarPanela);
return panel;
}

private static void createAndShowGUI() {
//Create and set up the window.
frame = new JFrame("LayeredPaneDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Create and set up the content pane.
JComponent newContentPane = new Menu();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//ramka bez paska gornego
frame.setUndecorated(true);
//Display the window.
frame.pack();
frame.setBounds(200,100,SCREEN_WIDTH,SCREEN_HEIGHT);
frame.setVisible(true);
frame.setResizable(false);

}

public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
    public void run() {

        try {
        JFrame.setDefaultLookAndFeelDecorated(true);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        createAndShowGUI();

    }
});
}
}