Java/com/study/demo2/Animal.java

package com.study.demo2;

public abstract class Animal {
    protected String name;

    public Animal(String name) {
        this.name = name;
    }

    public abstract void makeSound();
    public abstract void move();
}

class Dog extends Animal {
    public Dog(String name) {
        super(name);
    }

    @Override
    public void makeSound() {
        System.out.println(name + " 汪汪叫");
    }

    @Override
    public void move() {
        System.out.println(name + " 跑动");
    }
}

class Bird extends Animal {
    public Bird(String name) {
        super(name);
    }

    @Override
    public void makeSound() {
        System.out.println(name + " 叽叽喳喳");
    }

    @Override
    public void move() {
        System.out.println(name + " 飞翔");
    }
}