Typesafe Enum

Typesafe Enum Definition Define a class representing a single element of the enumerated type and provide no public constructor. An enumeration is a new type since Java 5 (jdk1.5). Before jdk1.4, you can create a similar type that is much better and type safe. This is so-called Typesafe Enum pattern. Where to use & benefits Use class to present int or String constants if using jdk version below 1.5

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エナム