题目要求：

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代码框架：

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代码实现：

person类：

package www.jsu.com;

public 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;
    }
}

sporter类:

package www.jsu.com;

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

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

    public abstract void study();
}

English的接口：

package www.jsu.com;

public interface English {
    public abstract void speakEnglish();
}

 pingpongsporter类：

package www.jsu.com;

public class PingPongSporter extends Sporter implements English{
    public PingPongSporter() {
    }

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

    @Override
    public void speakEnglish() {
        System.out.println("乒乓球员在说英语");
    }

    @Override
    public void study() {
        System.out.println("乒乓球员在学习");
    }
}

 basketballsporter类：

package www.jsu.com;

public class BasketballSporter extends Sporter{
    public BasketballSporter() {
    }

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

    @Override
    public void study() {
        System.out.println("篮球运动员在学习如何打篮球");
    }
}

coach类：

package www.jsu.com;

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

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

    public abstract void teach();
}

pingpangcoach类：

package www.jsu.com;

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

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

    @Override
    public void teach() {
        System.out.println("乒乓球教练在教乒乓球");
    }

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

basketballcoach类：

package www.jsu.com;

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

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

    @Override
    public void teach() {
        System.out.println("篮球运动员在教如何打篮球");
    }
}