An array. I would make an array something like this to start off with.
Code:
String numtostring[] = {"zero", "one", "two", ....}
Then you would read the users input, convert it to an integer, and get the array value by saying:
Code:
//user_input_int is the integer the user's input.
numtostring[user_input_int];
or something like that
This may not be the most efficient way if you want to write out a number like 1000 as one thousand. You would probably need more arrays or something. Anyway, I hope this helps :)
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