JinternalFrame border disappear behind other internal frame's Panels

Question

Hi
I have a simble MDI application with 2 internal frames.
internal frame 1 contains a black panel
internal frame 2 is empty.
my problem is :
(internal frame 2 )'s Border disappear behind the panel in (internal frame 1).
how could i solve this??
here is my code :
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class DesktopExample extends JFrame
public static void main(String[] args)
JFrame.setDefaultLookAndFeelDecorated(true);
final JDesktopPane desktop = new JDesktopPane();
desktop.setPreferredSize(new Dimension(600, 400));
JMenuBar mb = new JMenuBar();          
JMenu menu = new JMenu("File");          
JMenuItem item = new JMenuItem("Internal frame 1");     
JMenuItem item2 = new JMenuItem("Internal Frame 2");
item.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent evt)
JInternalFrame fr = new JInternalFrame("internal", true, true, true, true);     
Panel panel = new Panel();
panel.setSize(100,100);
panel.setBackground(Color.black);
fr.getContentPane().add(panel);
fr.setBounds(100, 100, 300, 200);
fr.show();
desktop.add(fr);          
fr.setVisible(true);     
item2.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent evt)
JInternalFrame fr = new JInternalFrame("internal", true, true, true, true);     
fr.setBounds(200, 200, 300, 200);
desktop.add(fr);          
fr.setVisible(true);     
menu.add(item);
menu.add(item2);
mb.add(menu);          
JFrame f = new JFrame("DesktopExample");     
f.setJMenuBar(mb);     
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     
f.getContentPane().add(desktop);     
f.pack();          
//f.setLocationRelativeTo(null);     
f.setVisible(true);     
Thank you.

Answer 1

may you please how could I do this in the following code?
import java.awt.*;
import javax.swing.*;
public class MessageArea extends Canvas
public MessageArea()
normalMode = true;
public MessageArea(int size)
normalMode = true;
label = "";
this.size = size;
init();
void init()
bgColor = new Color(155, 175, 202);
textColor = Color.black;
Font font = new Font("Dialog", 1, 12);
setFont(font);
FontMetrics fm = getFontMetrics(getFont());
xMargin = fm.charWidth('0');
yMargin = 2;
textOffset = new Point(xMargin, fm.getAscent() + yMargin);
width = xMargin * size + 2 * xMargin;
height = fm.getAscent() + fm.getDescent() + 2 * yMargin;
public void setBGColor(Color bgColor)
this.bgColor = bgColor;
public void setTextColor(Color textColor)
this.textColor = textColor;
public void setLabel(String label)
this.label = label;
if(isVisible())
repaint();
public void setLabel(String label, Color textColor)
this.label = label;
this.textColor = textColor;
if(isVisible())
repaint();
public void paint(Graphics g)
setBackground(bgColor);
g.setColor(textColor);
g.drawString(label, textOffset.x, textOffset.y);
public Dimension getPreferredSize()
return new Dimension(width, height);
public Dimension getMinimumSize()
return new Dimension(width, height);
String label;
int width;
int height;
Point textOffset;
Color bgColor;
Color textColor;
int xMargin;
int yMargin;
boolean normalMode;
int size;
}