We all know that how powerful the enumeration type in Java is, and one of the main strengths of enum is that they can implement an interface, they can have an instance variable and you can also override any method inside enum instance. In Java programs, we often need to convert Enum to String type, sometimes just to print values in the log file and other times for storing log into the database. By default, when you print an enum constant, it prints its literal value e.g. if the name of the enum instance is RED, then it will print RED. This is also the value that is returned by the name() method of java.lang.Enum class. But, there are situations when we want a custom String value for an enum constant.
The Ultimate Guide of Enum in Java - Examples
Apart from the Class and Interface, Enumeration type or Enum is another popular type in Java programming language. Enum allows you to represent a fixed number of well-known things in a type-safe manner e.g. days of the week, days of the month, planets in the solar system, buttons on the remote control, keys on the keyboard, and suits on playing cards. Before Enum was introduced, prior to Java 1.5, integer and string constants are used to represent the fixed number of things, known as enum int pattern and enum string pattern as described in classic Effective Java by none other than Joshua Bloch. Though they served the purpose, they had some major drawbacks which resulted in poor quality code.
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