Can I make an abstract enum in Java?
enums, java
Solution
No, you can't; enum types all extend `Enum`, and they're implicitly `final`. Enums can implement interfaces, or you can declare the relevant methods directly on the enum class in question.
(I do see the basic idea of what you want, which is a mixin; perhaps the Java 8 interfaces will be a bit more useful in this regard.)
Problem
Below is a valid enum declaration. ``` public enum SomeEnumClass { ONE(1), TWO(2), THREE(3); private int someInt; public SomeEnumClass(int someInt) { this.someInt = someInt; } } ``` But can I override an abstract class with an enum type? SomeEnumClass.java ``` public abstract enum SomeEnumClass { private int someInt; public SomeEnumClass(int someInt) { this.someInt = someInt; } } ``` OverridingEnumClass.java ``` public enum OverridingEnumClass extends SomeEnumClass { ONE(1), TWO(2), THREE(3); } ``` If not, why not? And if not, then what is a good alternative?