创建一个抽象类动物类以及以下几个接口：进食的接口、睡觉的接口、思考的接口、说话的接口。分别定义猫类、人类、鸟类继承动物类并选择实现上述的接口，并创建实例验证。

interface Animal{
    void breathe();
    void eat();
    void sleep();
}

class Cat implements Animal{

    @Override
    public void breathe() {
        System.out.println("一直在呼吸...");
    }

    @Override
    public void eat() {
        System.out.println("就知道吃吃吃！");
    }

    @Override
    public void sleep() {
        System.out.println("一天天的就知道睡！");
    }
}
interface Bird extends Animal{
    void fly();
}
interface Human extends Animal{
    void speak();
    void think();
}
class bird implements Bird{

    @Override
    public void fly() {
        System.out.println("鸟的优点就是能上天吧");
    }

    @Override
    public void breathe() {

    }

    @Override
    public void eat() {

    }

    @Override
    public void sleep() {

    }
}
class man implements Human{

    @Override
    public void breathe() {

    }

    @Override
    public void eat() {
        System.out.println("人类的优势在于用筷子吃饭");
    }

    @Override
    public void sleep() {

    }

    @Override
    public void speak() {
        System.out.println("Wow~ You can really dance~");
    }

    @Override
    public void think() {
        System.out.println("I think~");
    }
}
public class main {
    public static void main(String[] args) {
    Cat cat = new Cat();
    cat.breathe();
    cat.eat();
    cat.sleep();
    man woman = new man();
    woman.speak();
    woman.think();
    }
}

 

来源：CSDN

作者：Bangchui_programer

链接：https://blog.csdn.net/Bangchui_programer/article/details/103774125