贪吃蛇代码详解

//贪吃蛇游戏  public class Snake
//食物类 class Food
//蛇类class SnakeRun
//窗口显示Class Table

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

interface UsefulNum{
int BOUND = 400;

}

//现在我们要做的事情就是，就初始蛇点画在界面上
class Snake implements Runnable,UsefulNum{
      ArrayList<Food> snakeList = new ArrayList<Food>();
      Food f1  = new Food(200,200);
  Food f2 = new Food(210,200);
  Food f3 = new Food(220,200);
  public Snake(){  
snakeList.add(f1);
snakeList.add(f2);
snakeList.add(f3);
  
  }

//这里如何调用paint 方法