JavaÖÐGraphicsÓ÷¨

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
 
import javax.swing.JFrame;
import javax.swing.JPanel;
 
public class MyFrame extends JFrame {
 
         /**
          *
          */
         private
static final long serialVersionUID = 1L;
 
         class
MyPanel extends JPanel {
 
                   /**
                    *
                    */
                   private
static final long serialVersionUID = 1L;
 
                   public
void paint(Graphics graphics) {
                            super.paint(graphics);
                            Graphics
g2d = (Graphics2D) graphics;
                            g2d.setColor(Color.black);
                            g2d.draw3DRect(