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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MainClass {
public static void main(String[] args) {
JFrame f = new JFrame();
final JPanel p1 = new JPanel();
p1.add(new JLabel("GlassPane Example"));
JButton show = new JButton("Show");
p1.add(show);
p1.add(new JButton("No-op"));
f.getContentPane().add(p1);
final JPanel glass = (JPanel)f.getGlassPane();
glass.setVisible(true);
glass.setLayout(new GridBagLayout());
JButton glassButton = new JButton("Hide");
glass.add(glassButton);
f.setSize(150, 80);
f.setVisible(true);
show.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
glass.setVisible(true);
p1.repaint();
}
});
glassButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
glass.setVisible(false);
p1.repaint();
}
});
}
}
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