It is related to core java enums

Question

what is singleton instances of the enumeration class in java?

Context, please! Where did you hear about "singleton instances of the enumeration class"? — Jørn Schou-Rode, Apr 21 '10 at 08:37
And some details [https://stackoverflow.com/questions/26285520/implementing-singleton-with-an-enum-in-java](https://stackoverflow.com/questions/26285520/implementing-singleton-with-an-enum-in-java) — Mykola Bova, Nov 22 '17 at 17:51

score 1 · Answer 1 · answered Apr 21 '10 at 08:57

Perhaps you're talking aobut using an enum to implement the singleton pattern?

public enum Singleton {
   INSTANCE;
   public void singletonMethod() { ... }
}

Since enums were added to Java, this is the best (shortest, most correct) way to implement singletons.

1 Answers1