2-18_运动员和教练案例代码实现

package InterfacePlayerAndCoach;

public abstract class Person {
    private String name;
    private int age;

    public Person() {
    }

    public Person(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 abstract void eat();
}

package InterfacePlayerAndCoach;

public abstract class Coach extends Person{
    public Coach() {
    }

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

    public abstract void teach();
}

package InterfacePlayerAndCoach;

public class BasketballCoach extends Coach{
    public BasketballCoach() {
    }

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

    @Override
    public void teach() {
        System.out.println("篮球教练教如何运球和投球");
    }

    @Override
    public void eat() {
        System.out.println("篮球教练吃羊肉，喝羊奶");
    }
}

package InterfacePlayerAndCoach;

public interface SpeakEnglish {
    public abstract void speak();
}

package InterfacePlayerAndCoach;

public class PingPangCoach extends Coach implements SpeakEnglish{
    public PingPangCoach() {
    }

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

    @Override
    public void teach() {
        System.out.println("乒乓球教练教如何发球和接球");
    }

    @Override
    public void eat() {
        System.out.println("乒乓球教练吃小白菜，喝大米粥");
    }

    @Override
    public void speak() {
        System.out.println("乒乓球教练说英语");
    }
}

package InterfacePlayerAndCoach;

public abstract class Player extends Person{
    public Player() {
    }

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

    public abstract void study();
}

package InterfacePlayerAndCoach;

public class BasketballPlayer extends Player{


    public BasketballPlayer() {
    }

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

    @Override
    public void study() {
        System.out.println("篮球运动员学习如何运球和投篮");
    }

    @Override
    public void eat() {
        System.out.println("篮球运动员吃牛肉，喝牛奶");
    }
}

package InterfacePlayerAndCoach;

public class PingPangPlayer extends Player implements SpeakEnglish{
    public PingPangPlayer() {
    }

    public PingPangPlayer(String name, int age) {
        super(name, age);

package InterfacePlayerAndCoach;

public class PingPangCoach extends Coach implements SpeakEnglish{
    public PingPangCoach() {
    }

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

    @Override
    public void teach() {
        System.out.println("乒乓球教练教如何发球和接球");
    }

    @Override
    public void eat() {
        System.out.println("乒乓球教练吃小白菜，喝大米粥");
    }

    @Override
    public void speak() {
        System.out.println("乒乓球教练说英语");
    }
}

package InterfacePlayerAndCoach;
/*
    运动员和教练

    需求：我们现在有乒乓球运动员和篮球运动员，乒乓球教练和篮球教练。为了出国交流，跟乒乓球相关的人员都需要学习英语。
        请用所学知识分析，这个案例中有哪些具体类，哪些是抽象类，哪些接口，并用代码实现
    分析：从具体到抽象
            乒乓球运动员
            篮球运动员
            乒乓球教练
            篮球教练
    实现：从抽象到具体
    实现：使用的是具体的类的对象


    思路：
        1.定义说英语接口           成员方法：说英语（）；
        2.定义抽象人类             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（）；
        3.定义抽象教练类，继承人类             构造方法：无参，带参；成员方法：教学（）
        4.定义抽象运动员类，继承人类            构造方法：无参，带参；成员方法：学习（）
        5.定义具体篮球教练类，继承教练类         构造方法：无参，带参；成员方法：重写吃饭（）{...}，重写教学
        6.定义具体乒乓球教练类，继承教练类，实现说英语接口
            构造方法：无参，带参；成员方法：重写吃饭，重写教学，重写说英语
        7.定义具体篮球运动员类，继承运动员类     构造方法：无参，带参；成员方法：重写吃饭，重写学习
        8.定义具体乒乓球运动员类，继承运动员类，实现说英语接口
            构造方法：无参，带参；成员方法：重写吃饭，重写学习，重写说英语
        9.定义测试，写代码测试
* */
public class personDemo {
    public static void main(String[] args) {
        //创建对象
        PingPangPlayer ppp = new PingPangPlayer();
        ppp.setName("小明");
        ppp.setAge(35);
        System.out.println(ppp.getName()+","+ppp.getAge());
        ppp.eat();
        ppp.study();
        ppp.speak();
        System.out.println("---------");


        BasketballPlayer bp = new BasketballPlayer();
        bp.setName("姚明");
        bp.setAge(40);
        System.out.println(bp.getName()+","+bp.getAge());
        bp.eat();
        bp.study();
    }
}

 

    }

    @Override
    public void study() {
        System.out.println("乒乓球运动员学习如何发球和接球");
    }

    @Override
    public void eat() {
        System.out.println("乒乓球运动员吃大白菜，喝小米粥");
    }

    @Override
    public void speak() {
        System.out.println("乒乓球运动员说英语");
    }
}