Web Reference: An enum is a special "class" that represents a group of constants (unchangeable variables, like final variables). To create an enum, use the enum keyword (instead of class or interface), and separate the constants with a comma. In this chapter, you will learn about what is enumeration and how it is used within Java programming language to do different tasks. In the Java programming language, you define an enum type by using the enum keyword. For example, you would specify a days-of-the-week enum type as: SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY . You should use enum types any time you need to represent a fixed set of constants.
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