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Extending enum in java. Can we extend (inherit) an enum type.
extending enums in java is not allowed. As example suppose you have two enums A and B .Y
You can't do the following :

Code:

enum B
{
}
enum A extends enum B
{
   // Define you enum here .
} 



And in the same time you can't use implements keyword , because B is not an interface ,But if your system need both to be same type , for example if you want to define one function signature to take both enums as parameters you can do it by defining an enum and implementing it in both enums .

Code:

interface enuminterface
enum B implements enuminterface
{
}
enum A  implements enuminterface

{
   // Define you enum here .
} 


and your signature will be something like this :
Code:
 return type myfunction (enuminterface Enumparam)  ;  




_________________
M. S. Rakha, Ph.D.
Queen's University
Canada


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