What is the definition of a Java Enum?

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A Java Enum is a special data type that enables a programmer to define a set of predefined constants. These constants can be used as a group to provide more clarity to code, and can also help ensure that certain values are only used in a specific way. Enums are typically used to define a fixed set of values that represent a specific concept, such as directions, days of the week, or colors. Unlike regular constants or variables, Enums have a fixed set of values that cannot be modified during runtime.