文章标题

public abstract class Animal {
        abstract void cry();
        abstract String getAnmialName();
}

public class Simulator {
        public void playSound(Animal animal){
            System.out.println(animal.getAnmialName());
            animal.cry();
        }
}

public class Cat extends Animal{
     public String name;
        public Cat(String name) {
            this.name=name;
        }
        void cry() {
            System.out.println("猫叫是：喵喵喵");
        }

        String getAnmialName() {
            System.out.println("猫猫的名字"+this.name);
            return "动物的种类是猫";
        }

}

public class Dog extends Animal{
     public String name;
        public Dog(String name) {
            this.name=name;
        }
        void cry() {
            System.out.println("狗叫是：汪汪汪");
        }

        String getAnmialName() {
            System.out.println("狗狗的名字"+this.name);
            return "动物的种类是狗";
        }

}

public class Text {

    public static void main(String[] args) {

        Simulator simulator=new Simulator();
        Dog dog=new Dog("点点");
        simulator.playSound(dog);
        Cat cat=new Cat("白白");
        simulator.playSound(cat);
    }

}

运行结果：
狗狗的名字点点
动物的种类是狗
狗叫是：汪汪汪
猫猫的名字白白
动物的种类是猫
猫叫是：喵喵喵