Originally posted by hkownz
I could look into it, it could be tricky with the exchange rates always changing, but there is probably a way to grab them from a exchange site or something like that. But I will look into it for you.
Not sure about Java's webrequest library but look into something of the equivalence of HTTPWebRequest.
Find a site that does the conversions and if the computer can connect via web, grab the newest updates of the conversions and save that to a file on the computer to store as most recent conv_rates.
Read from the file and store each as conversion variables and then let your program do the math from there. That way the application can be used online and offline.