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java applet »­Ò»¸öÎå½ÇÐÇ

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import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JApplet;
class Mystar  extends JPanel   implements MouseListener{
 
 /**
  *
  */
 private static final long serialVersionUID = -1593070116999116510L;
    public JPanel a=new JPanel();
    int[] lx = new int[5]; // 5¸öXÍâ¶¥µã×ø±ê
    int[] ly = new int[5]; // 5¸öYÍâ¶¥µã×ø±ê
    int[] sx = new int[5]; // 5¸öXÄÚ¶¥µã×ø±ê
    int[] sy = new int[5]; // 5¸öYÄÚ¶¥µã×ø±ê
    public  int x=50;
    public  int y=50;
    int lr = 50; // Íâ¶¥µãÍâ½ÓÔ²°ë¾¶
       public Mystar(int x,int y)
       {
        
      this.x=x;
      this.y=y;
         
            a.add(this);
            setBackground(Color.red);          //¸÷λ¸ßÊÖ,Ë­ÄܸæËßÎÒ,ÕâÀïΪʲôÎÒÓÃa.set***¾Í²»ÐÐÁËÄØ??
            a.addMouseListener(this);          //×¢²áÊó±êʼþ
           
       }
   
  
          void math()
          {
            
  


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