demo

基本背景

// 背景: 有一家甜品点，有2类机器，面包和蛋糕机器， 接口 BreadMachine CakeMachine
//      面包机器有蜂蜜和黄油2种，类 BreadButter BreadBee
//      蛋糕机器有水果和巧克力2种，类 CakeFruit CakeChocolate
package com.ah.test.proxy.shop1;
// 面包机器
interface BreadMachine {void makeBread();
}
class BreadButter implements BreadMachine {public void makeBread() {System.out.println("制作黄油面包....");}
}
class BreadBee implements BreadMachine{public void makeBread() {System.out.println("制作蜂蜜面包...");}
}
// 蛋糕机器
interface CakeMachine {void makeCake();
}
class CakeFruit implements CakeMachine{public void makeCake() {System.out.println("制作水果蛋糕...");}
}
class CakeChocolate implements CakeMachine{public void makeCake() {System.out.println("制作巧克力蛋糕...");}
}
public class Test {public static void main(String[] args) {new BreadButter().makeBread();new BreadBee().makeBread();new CakeFruit().makeCake();new CakeChocolate