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

  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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