五子棋 成功

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class mypanel extends Panel implements MouseListener
{
    int chess[][] = new int[11][11];
    boolean Is_Black_True;
    mypanel()
    {
        Is_Black_True = true;
        for(int i = 0;i < 11;i++)
        {
            for(int j = 0;j < 11;j++)
            {
                chess[i][j] = 0;            //Çå¿Õ
            }
        }
        addMouseListener(this);
        setBackground(Color.BLUE);          //¿ò¼Ü±³¾°ÑÕɫΪÀ¶É«
        setBounds(0, 0, 360, 360);         //ÉèÖð´Å¥µÄ´óСÓëλÖÃ
        setVisible(true);                  //½«´°¿ÚÏÔʾ³öÀ´
    }
    public void mousePressed(MouseEvent e)
    {
        int x = e.getX();
        int y = e.getY();

 if(x < 25 || x > 330 + 25 ||y < 25 || y > 330+25)
        {
  return;
        }
 if(chess[x/30-1][y/30-1] != 0)
        {
  return;
        }
        if(Is_Black_True == true)
        {
            chess[x/30-1][y/30-1] = 1;
            Is_Black_True = false;
            repaint();
            Justisewiner();
            return;
        }
        if(Is_Black_True == false)
        {
            chess[x/30-1][y/30-1] = 2;
            Is_Black_True = true;
            repaint();
            Justisewiner();
            return;
        }
    }
    void Drawline(Graphics g)
    {
 for(int i = 30;i <= 330;i += 30)
 {
            for(int j = 30;j <= 330; j+= 30)