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import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
public void paint(Graphics g) {
g.setColor (Color.gray);
g.draw3DRect (25, 10, 50, 75, true);
g.draw3DRect (25, 110, 50, 75, false);
g.fill3DRect (100, 10, 50, 75, true);
g.fill3DRect (100, 110, 50, 75, false);
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.getContentPane().add(new MainClass());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(200, 200);
frame.setVisible(true);
}
}
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