java贪吃蛇

package tanChiShe; 
import java.awt.Color; 
import java.awt.Container; 
import java.awt.Graphics; 
import java.awt.Toolkit; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.InputEvent; 
import java.awt.event.KeyEvent; 
import java.awt.event.KeyListener; 
 


import javax.swing.*; 



 


public class TanChiShe extends JFrame implements ActionListener, KeyListener,Runnable 



{ 
private JMenuBar menuBar; 
private JMenu youXiMenu,nanDuMenu,fenShuMenu,guanYuMenu; 
private JMenuItem kaiShiYouXi,exitItem,zuoZheItem,fenShuItem; 

private JCheckBoxMenuItem cJianDan,cPuTong,cKunNan; 
private int length = 6; 
private Toolkit toolkit; 
private int i,x,y,z,objectX,objectY,object=0,growth=0,time;//bojectX,Y为食物坐标,z为蛇前进方向 
private int difficult=2; 
private int m[]=new int[50]; 
private int n[]=new int[50]; 
private Thread she = null; 
private int life=0; 
private int foods = 0; 
private int fenshu=0; 
 


public void run() 



{  
  time=500; 
  for(i=0;i<=length-1;i++) 
  { 
   m[i]=90-i*10;n[i]=60; 
  } 
  
  x=m[0]; 
  y=n[0]; 
  z=4;