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(); } }