装饰模式，制作一个蛋糕java

import java.text.DecimalFormat;



 //抽象组件组件

interface mkcake

{

    public void cake();

}

class  Cake implements mkcake

{



    @Override

    public void cake() {

        // TODO Auto-generated method stub

        System.out.println("一个成型蛋糕");

        

    }

     

}

//装饰接口

abstract class Decorator implements mkcake

{

    mkcake m;

    

      public Decorator(mkcake m)

      {

          this.m=m;

      }

    

    }

class AddMilk extends Decorator

{

    public AddMilk(mkcake m)

    {

        super(m);

    }



    @Override

    public void cake() {

        // TODO Auto-generated method stub

        m.cake();

        System.out.println("加了牛奶");

        

    }



    

    

}

class AddEgg extends Decorator

{

    public AddEgg(mkcake m)

    {

        super(m);

    }



    @Override

    public void cake() {

        // TODO Auto-generated method stub

        m.cake();

        System.out.println("加了鸡蛋");

        

    }



    

    

}









public class 装饰模式 {



    /**

     * @param args

     */

    public static void main(String[] args) {

        // TODO Auto-generated method stub

        //开始制作蛋糕

        mkcake c=new Cake();

        mkcake m=new AddMilk(new AddEgg(new Cake()));

        m.cake();



    }



}