Un exemplu simplu de folosire a JLayeredPane --- Java

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Layed

{

public static void main()

{

Layed gui=new Layed();

gui.go();

};

JButton buton;

int flag=0;

JLayeredPane layer;

JButton b1;

JButton b2;

JButton b3;

JLabel label;

public void go()

{

JFrame frame=new JFrame();

layer=new JLayeredPane();

label=new JLabel("Nimic");

b1=new JButton("1");

b2=new JButton("2");

b3=new JButton("3");

b1.setBackground(Color.cyan);

b2.setBackground(Color.magenta);

b3.setBackground(Color.lightGray);

b1.setOpaque(true);

b2.setOpaque(true);

b3.setOpaque(true);

b1.setBounds(0,0,100,100);

b2.setBounds(30,30,100,100);

b3.setBounds(60,60,100,100);

layer.add(b1,JLayeredPane.DEFAULT_LAYER);

layer.add(b2,JLayeredPane.PALETTE_LAYER);

layer.add(b3,JLayeredPane.MODAL_LAYER);

buton=new JButton("1<->2<->3");

frame.add(layer,BorderLayout.CENTER);

frame.add(buton,BorderLayout.SOUTH);

frame.getContentPane().add(label,BorderLayout.NORTH);

frame.setSize(300,300);

frame.setVisible(true);

buton.addActionListener(new List());

}

class List implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

flag++;

if(flag==1)//buton 1 in fata

{

label.setText("1,2,3 falg=1");

layer.setLayer(b1,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b2,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b3,JLayeredPane.MODAL_LAYER);

}

else

if(flag==2)

{

label.setText("1,3,2 falg=2");

layer.setLayer(b1,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b3,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b2,JLayeredPane.MODAL_LAYER);

}

else

if(flag==3)

{

label.setText("2,1,3 falg=3");

layer.setLayer(b2,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b1,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b3,JLayeredPane.MODAL_LAYER);

}

else

if(flag==4)

{

label.setText("2,3,1 falg=4");

layer.setLayer(b2,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b3,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b1,JLayeredPane.MODAL_LAYER);

}

else

if(flag==5)

{

label.setText("3,1,2 falg=5");

layer.setLayer(b3,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b1,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b2,JLayeredPane.MODAL_LAYER);

}

else

if(flag==6)

{

label.setText("3,2,1 falg=6");

layer.setLayer(b3,JLayeredPane.DEFAULT_LAYER);

//layer.setLayer(b2,JLayeredPane.DEFAULT_LAYER);

//layer.setLayer(b1,JLayeredPane.DEFAULT_LAYER);

layer.setLayer(b2,JLayeredPane.PALETTE_LAYER);

layer.setLayer(b1,JLayeredPane.MODAL_LAYER);

flag=0;

}

}

}

}