Extending an enum via inheritance

Question

I know this rather goes against the idea of enums, but is it possible to extend enums in C#/Java? I mean \"extend\" in both the sense of adding new values to an enum, but a

Answer 1

If you mean extends in the Base class sense, then in Java... no.

But you can extend an enum value to have properties and methods if that's what you mean.

For example, the following uses a Bracket enum:

class Person {
    enum Bracket {
        Low(0, 12000),
        Middle(12000, 60000),
        Upper(60000, 100000);

        private final int low;
        private final int high;
        Brackets(int low, int high) {
            this.low = low;
            this.high = high;
        }

        public int getLow() {
            return low;
        }

        public int getHigh() {
            return high;
        }

        public boolean isWithin(int value) {
           return value >= low && value <= high;
        }

        public String toString() {
            return "Bracket " + low + " to " + high;
        }
    }

    private Bracket bracket;
    private String name;

    public Person(String name, Bracket bracket) {
        this.bracket = bracket;
        this.name = name;
    }

    public String toString() {
        return name + " in " + bracket;
    }        
}