10/17

public class Zoo
{

    public static void main(String args[])
    {

        Feeder f = new Feeder("小李");

        // 饲养员小李喂养一只狮子

        f.feedLion(new Lion());

        // 饲养员小李喂养十只猴子

        for (int i = 0; i < 10; i++)
         {

            f.feedMonkey(new Monkey());

        }

        // 饲养员小李喂养5只鸽子

        for (int i = 0; i < 5; i++)
         {

            f.feedPigeon(new Pigeon());

        }

    }

}


class Feeder
{


    public String name;


    public Feeder(String name)
    {

        this.name = name;

    }


    public void feedLion(Lion l)
    {

        l.eat();

    }


    public void feedPigeon(Pigeon p)
    {

        p.eat();

    }


    public void feedMonkey(Monkey m)
    {

        m.eat();

    }

}


class Lion
{


    public void eat()
    {

        System.out.println("我不吃肉谁敢吃肉！");

    }

}


class Monkey
{

    public void eat()
    {

        System.out.println("我什么都吃，尤其喜欢香蕉。");

    }

}


class Pigeon
{


    public void eat()
    {

        System.out.println("我要减肥，所以每天只吃一点大米。");

    }

}