实现如下类之间的继承关系，并编写Music类来测试这些类。

 

 

 

package com.hanqi.test;public class Instrument {    //输出弹奏乐器    public void play()    {        System.out.println("弹奏乐器");    }}

package com.hanqi.test;public class Wind extends Instrument {    //弹奏wind    public void play()    {        System.out.println("弹奏wind");    }    //调用wind的play2    public void play2()    {        System.out.println("调用wind的play2");    }}

package com.hanqi.test;public class Brass extends Instrument {       //弹奏Brass        public void play()        {            System.out.println("弹奏Brass");        }        //调用Brass的play2        public void play2()        {            System.out.println("调用Brass的play2");        }}

package com.hanqi.test;public class Music {    public static void main(String[] args) {        Instrument i=new Instrument();        i.play();        Wind w=new Wind();        w.play();        w.play2();        Brass b=new Brass();        b.play();        b.play2();    }}