package mianxiangduixiang; public class Wind extends Instrument { public void play() { System.out.println("弹奏Wind"); } public void play2() { System.out.println("调用Wind的play2"); } public static void main(String[] args) { // TODO 自动生成的方法存根 }
1 package mianxiangduixiang; 2 3 public class Brass extends Instrument { 4 5 public void play() 6 { 7 System.out.println("弹奏brass"); 8 } 9 public void play2() 10 { 11 System.out.println("调用Brass的play2"); 12 } 13 public static void main(String[] args) { 14 // TODO 自动生成的方法存根 15 16 } 17 18 }
1 package mianxiangduixiang; 2 3 public class Music { 4 5 public static void main(String[] args) { 6 // TODO 自动生成的方法存根 7 Instrument i=new Instrument(); 8 i.play(); 9 Wind w=new Wind(); 10 Instrument.turn(i); 11 w.turn(w); 12 Brass b=new Brass(); 13 b.turn(b); 14 }
