instrument.java

Java编程思想这本书很好

//: c07:music:Music.java
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
package c07.music;

public class Instrument {
  public void play(Note n) {
    System.out.println("Instrument.play() " + n);
  }
} ///:~