OnJava8-Examples/polymorphism/music/Instrument.java

// polymorphism/music/Instrument.java
// (c)2020 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
package polymorphism.music;

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