What is meant by enum?

Enum:It is defined as group of named constants.

•    A enum is a class ,it should be used to extend java.lang.Enum but not other classes.
• If we are taking only constants it is not necessary to put semicolons; at end of constants.
• It also contains constructors, methods.
• All constants  are public static and final.
• Enum is a child class of java.lang.Enum
• So enum cannot extend another class.
• Enu can implement any n.o of interfaces.
• We can declare enum ,inside and outside of a class,but not inside the method.
• In enum constants are compulsary

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