Re: Rosetta PGA-TRAM

[whakka]

Pretty straightforward to translate to a Java version:

import java.util.HashMap;

public class pgaTram {

    private static HashMap<Character, Integer> rtoa = loadRTOA();

    public static void main(String[] args) {
        String[] testdata = { "XLII", "LXIX", "mi" };
        for (String t : testdata) {
            System.out.println(t + ": " + romanToDec(t));
        }
    }

    public static int romanToDec(String s) {
        int t = 0;
        for (char c : s.toCharArray()) {
            int n = rtoa.get(Character.toUpperCase(c));
            t += n - t % n * 2;
        }
        return t;
    }

    private static HashMap<Character, Integer> loadRTOA() {
        HashMap<Character, Integer> rtoa = new HashMap<Character, Inte
+ger>();
        rtoa.put('M', 1000);
        rtoa.put('D', 500);
        rtoa.put('C', 100);
        rtoa.put('L', 50);
        rtoa.put('X', 10);
        rtoa.put('V', 5);
        rtoa.put('I', 1);
        return rtoa;
    }
}