给小狗喂骨头，小狗会汪汪叫；给小猫喂食，小猫会喵喵叫。本案例要求编写一个程序模拟饲养员喂食动物的过程

public class driver{
    public static void main(String[] args) {
        Feeder feeder = new Feeder(" greed");
        feeder.speak();
        dog dog = new dog("斗子");
        dog.sound();
        food food = new food();
        food.setName("骨头");
        feeder.feed(dog,food);
        cat cat = new cat("悠米");
        cat.sound();
        food.setName("鱼");
        feeder.feed(cat,food);

    }
}

 class Feeder {
    public String name;
    public Feeder(String name){
        this.name=name;
    }
    public void speak(){
        System.out.println("welcome");
        System.out.println("i am"+getName());
    }
    public void feed(Animal a,food food){
        a.eat(food);
    }
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
}


abstract class Animal {
    private String name;
    public Animal(String name){
        this.name=name;
    }
    public abstract void sound();
    public abstract void eat(food food);
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name = name;
    }
}


class food {
    private String name;
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
}


 class dog extends Animal {
    public dog(String name){
        super(name);
    }
    public void sound(){
        System.out.println("wamhwamhwamh");
    }
    public void eat(food food){
        System.out.println(getName()+"正在食用"+food.getName());
    }
}


 class cat extends Animal {
    public cat(String name){
        super(name);
    }
    public void sound(){
        System.out.println("miaomiaomiao");
    }
    public void eat(food food){
        System.out.println(getName()+"正在食用"+food.getName());
    }
}