Java Enums are Inherently Serializable

enums are automatically Serializable, there is no need to explicitly add the "implements Serializable".

import java.io.Serializable;

enum Day {

      SUNDAY, MONDAY, TUESDAY, WEDNESDAY,

      THURSDAY, FRIDAY, SATURDAY;

}

public class EnumTest {

      public static void main(String[] args) {

            Day day = Day.MONDAY;

            String isSerializable = "Not Serializable";

            if(day instanceof Serializable) {

                  isSerializable = "Serializable";

            }

           

            System.out.println(isSerializable);

      }

}

Output: Serializable