What’s the advantage of a Java enum versus a class with public static final fields?

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  1. Type safety and value safety.
  2. Guaranteed singleton.
  3. Ability to define and override methods.
  4. Ability to use values in switch statement case statements without qualification.
  5. Built-in sequentialization of values via ordinal().
  6. Serialization by name not by value, which offers a degree of future-proofing.
  7. EnumSet and EnumMap classes.

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