运动员案例

package com.itheima_02;
/*  
 *  篮球运动员和教练
 *  乒乓球运动员和教练
 *  现在篮球运动员和教练要出国访问,需要学习英语
 *  请根据你所学的知识,分析出来哪些是类,哪些是抽象类,哪些是接口
 */

public class InterFaceTest {
    public static void main(String[] args) {
        //创建篮球运动员对象
        BasketBallPlayer bbp = new BasketBallPlayer();
        bbp.name = "女兆日月";
        bbp.age = 35;
        bbp.gender = "男";
        bbp.sleep();
        bbp.study();
        bbp.speak();
        System.out.println("------");
        //创建乒乓球教练对象
        PingPangCoach ppc = new PingPangCoach();
        ppc.name = "刘胖子";
        ppc.age = 40;
        ppc.gender = "男";
        ppc.sleep();
        ppc.teach();
//      ppc.speak();
    }
}

class Person {
    String name;//姓名
    int age;//年龄
    String gender;//性别
    
    //无参构造
    public Person() {}
    
    //有参构造
    public Person(String name, int age, String gender) {
        this.name = name;
        this.age = age;
        this.gender = gender;
    }
    
    //吃
    public void eat() {
        System.out.println("吃饭");
    }
    
    //睡
    public void sleep() {
        System.out.println("睡觉");
    }
}

//学习说英语
interface SpeakEnglish {
    public abstract void speak();
}

//运动员
abstract class Player extends Person {
    //学习
    public abstract void study();
}

//教练
abstract class Coach extends Person {
    //教
    public abstract void teach();
}

//篮球运动员
class BasketBallPlayer extends Player implements SpeakEnglish{

    @Override
    public void study() {
        System.out.println("学篮球");
    }

    @Override
    public void speak() {
        System.out.println("说英语");
    }
        
}
//乒乓球运动员
class PingPangPlayer extends Player {

    @Override
    public void study() {
        System.out.println("学抽球");
    }
    
}
//篮球教练
class BasketBallCoach extends Coach implements SpeakEnglish{

    @Override
    public void teach() {
        System.out.println("教扣篮");
    }

    @Override
    public void speak() {
        System.out.println("说英语");
    }
    
}
//乒乓球教练
class PingPangCoach extends Coach {

    @Override
    public void teach() {
        System.out.println("教抽球");
    }
    
}