Web Reference: Oct 9, 2025 · In Java, enumerations (enums) are a special type used to define a group of named constants. Enums help in readability, maintainability, and type safety in programs by assigning meaningful names to integer values. In this tutorial, we’ll learn what Java enums are, what problems they solve, and how some of their design patterns can be used in practice. Java 5 first introduced the enum keyword. It denotes a special type of class that always extends the java.lang.Enum class. For the official documentation on usage, we can head over to the documentation. Constan... 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.
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