2-07_抽象类

package duoTai06;

public class Animal {
    private String name;
    private int age;

    public Animal() {
    }

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

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

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

    public void eat(){
        System.out.println("动物吃东西");
    }
}

package duoTai06;

public class Cat extends Animal {
    public Cat() {
    }

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

    @Override
    public void eat() {
        System.out.println("猫吃鱼");
    }
}

package duoTai06;

public class Dog extends Animal{
    public Dog() {
    }

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

    @Override
    public void eat() {
        System.out.println("狗吃骨头");
    }
}

package duoTai06;
/*
    需求：请采用多态的思想实现猫和狗的案例，并在测试类中进行测试
    思路：
        1.定义动物类（Animal）
            成员变量：姓名，年龄
            构造方法：无参，带参
            成员方法：get/set方法，吃饭（）
        2.定义猫类，继承动物类
            构造方法：无参，带参
            成员方法：重写吃饭
       3.定义狗类，继承动物类
            构造方法：无参，带参
            成员方法：重写吃饭
       4.定义测试类，写代码测试
 */
public class AnimalDemo {
    public static void main(String[] args) {
        //创建猫类对象进行测试
        Animal a = new Cat();
        a.setName("加菲猫");
        a.setAge(4);
        System.out.println(a.getName()+","+a.getAge());
        a.eat();

        a = new Cat("加菲猫二号",5);
        System.out.println(a.getName()+","+a.getAge());
        a.eat();

        //创建狗类对象进行测试
        Animal d = new Dog();
        d.setName("凯特");
        d.setAge(3);
        System.out.println(d.getName()+","+d.getAge());
        d.eat();

        d = new Dog("凯特二号",8);
        System.out.println(d.getName()+","+d.getAge());
        d.eat();
    }
}