Storing Arrays in Maps (Or, alternatively, convert hex to dec)

I need to store 2 - 4 values that I have in hex in a map.  I've tried
storing an int[] in a map and can't make it work.  As of now, the only way
I can think of is to store it as a string, like "0x01 0xDF".  But then
when
I get it out of the map, I don't see how to convert it to one int for each
specified hex number.

If I could either store an array of 2-4 integers in a map or convert the
hex
strings to integers, it would work.  I've also experimented, on the output
end, with sscanf and sprintf, but I don't seem to have them working right.

(Plus I have to convert the string to a char[].)

Thanks for any help on this!

Hal