Enum is expanded by the compiler into a class statement?

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Enum is expanded by the compiler in a class declaration in Java?

java classes enums compilers
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    What do you mean by expanded?

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It can be understood that a Enum is a class with special features. The compiler will always treat this type in a specific way.

  • It has optimizations for some scenarios such as the use of bits,
  • it is allowed to use in some situations where the class is not, for example the switch,
  • cannot instantiate or extend type,
  • has serialization and toString() automatic,
  • I guess some other things.

So you could say yes, at least in the end it’s more or less the same thing. I don’t know if the specification says anything about how it should be done, but it’s a possible way, because I don’t know any specific instructions in bytecode of the JVM dealing with enumerations, then it has to be simulated with some other existing form and the class seems appropriate.

There’s a question in the OS whose answers confirm this.

  • What do you mean expanded in this case? I understand the explanation but still do not understand what this question wants to know.

  • What is translated after compiling

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