OnJava8-Examples/polymorphism/music/Note.java

// polymorphism/music/Note.java
// (c)2020 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
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// Notes to play on musical instruments
package polymorphism.music;

public enum Note {
  MIDDLE_C, C_SHARP, B_FLAT; // Etc.
}