Question

I have the following enum:

public enum Status implements StringEnum{       ONLINE('on'),OFFLINE('off');      private String status = null;      private Status(String status) {         this.status = status;     }      public String toString() {         return this.status;     }      public static Status find(String value) {         for(Status status : Status.values()) {             if(status.toString().equals(value)) {                 return status;             }         }          throw new IllegalArgumentException('Unknown value: ' + value );      } } 

Is it possible to build StringEnum interface to make sure every enum has find(), toString() and a constructor?

Thanks.

Answer 1

It’s not possible to specify either constructors or static methods in an interface. For a good, concise explanation, check out this article: No static methods in interfaces