模板方法模式（think in java中的设计模式）

package com.hhdeng.controller;

public class Test {
    public static void main(String[] args){
        HaveDinner hd=new HaveDinner();
        hd.HaveEatDinner(new ChineseFood());
        hd.HaveEatDinner(new JapanFood());
    }
    
    
}
class HaveDinner{
    public void HaveEatDinner(Dinner D){
        D.book();
        D.eat();
        D.pay();
    }
}
abstract class  Dinner{
    public abstract void eat();
    public  void book(){
        System.out.println("订单点菜");
    }
    public  void pay(){
        System.out.println("订单付款");
    }
}
class JapanFood extends Dinner{
    @Override
    public void eat() {
        System.out.println("吃寿司，吃鱼生");
    }
}
class ChineseFood extends Dinner{
    @Override
    public void eat() {
        System.out.println("吃米饭，吃麻婆豆腐");
    }
}