Convert a value into an enum

Question

I'm using enums that have assigned values, like so:enum Alphabet {
       a(101), b(135), c(22), d(5);
       private final int value;
       Alphabet(int i) { value = i; }
}OK, so I can get a value from an Alphabet object by Alphabet item;
item = Alphabet.c;
int i = c.value;Cool. But how do I go the other way, where I have an int value and I need to get the corresponding Alphabet object? Is that what EnumMap is for? If so it seems kind of inefficient, since my values can be all over the map, so to speak.

Answer 1

What's wrong with this?
enum Alphabet {
a(101), b(135), c(22), d(5);}
I can't get that to compile. You have to provide a constructor in the enum to tell it what the values in the ()s means.
Is there some reason the alphabet isn't a character
array instead?My example of Alphabet was just generic. My real application is using enum to describe possible values within a protocol structure.