JavaSE-10.3.2【继承案例-猫和狗】

package day1.yppah03;

/*
3.2 案例-猫和狗
 */

public class AnimalDemo {

    public static void main(String[] args) {
        Cat c1 = new Cat();
        c1.setName("tom");
        c1.setAge(5);
        System.out.println(c1.getName() + "," + c1.getAge());
        c1.catchMouse();

        Cat c2 = new Cat("tom", 3);
        System.out.println(c2.getName() + "," + c2.getAge());
        c2.catchMouse();

        Dog d1 = new Dog();
        d1.setName("wangcai");
        d1.setAge(2);
        System.out.println(d1.getName() + "," + d1.getAge());
        d1.lookDoor();

        Dog d2 = new Dog("small black", 3);
        System.out.println(d2.getName() + "," + d2.getAge());
        d2.lookDoor();
    }

}

package day1.yppah03;

public class Animal {

    private String name;
    private int age;

    public Animal() {
    }

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

    public void setName(String name) {
        this.name = name;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

}

package day1.yppah03;

public class Cat extends Animal{

    public Cat() {
    }

    public Cat(String name, int age) {
        super(name, age);
    }

    public void catchMouse(){
        System.out.println("猫抓老鼠");
    }

}

package day1.yppah03;

public class Dog extends Animal{

    public Dog() {
    }

    public Dog(String name, int age) {
        super(name, age);
    }

    public void lookDoor(){
        System.out.println("狗看门");
    }

}