VIN validator/decoder

VIN.java

public class VIN {
//from http://introcs.cs.princeton.edu/java/31datatype/VIN.java.html
   
   
    public static boolean isVinValid(String vin) {
        int[] values = { 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 5, 0, 7, 0, 9,
                2, 3, 4, 5, 6, 7, 8, 9 };
        int[] weights = { 8, 7, 6, 5, 4, 3, 2, 10, 0, 9, 8, 7, 6, 5, 4, 3, 2 };
       

        String s = vin;
        s = s.replaceAll("-", "");
        s = s.replaceAll(" ", "");
        s = s.toUpperCase();
        if (s.length() != 17)
            throw new RuntimeException("VIN number must be 17 characters");

        int sum = 0;
        for (int i = 0; i < 17; i++) {
            char c = s.charAt(i);
            int value;
            int weight = weights[i];

            // letter
            if (c >= 'A' && c <= 'Z') {
                value = values[c - 'A'];
                if (value == 0)
                    throw new RuntimeException("Illegal character: " + c);
            }

            // number
            else if (c >= '0' && c <= '9')
                value = c - '0';

            // illegal character
            else
                throw new RuntimeException("Illegal character: " + c);

            sum = sum + weight * value;

        }
       

        // check digit
        sum = sum % 11;
        char check = s.charAt(8);
        if (sum == 10 && check == 'X') {
            System.out.println("Valid");
            return true;
        } else if (sum == transliterate(check)) {
            System.out.println("Valid");
            return true;
        } else {
            System.out.println("Invalid");
            return false;
        } 

    }
    
    private static int transliterate(char check){
      if(check == 'A' || check == 'J'){
    		return 1;
    	} else if(check == 'B' || check == 'K' || check == 'S'){
    		return 2;
    	} else if(check == 'C' || check == 'L' || check == 'T'){
    		return 3;
    	} else if(check == 'D' || check == 'M' || check == 'U'){
    		return 4;
    	} else if(check == 'E' || check == 'N' || check == 'V'){
    		return 5;
    	} else if(check == 'F' || check == 'W'){
    		return 6;
    	} else if(check == 'G' || check == 'P' || check == 'X'){
    		return 7;
    	} else if(check == 'H' || check == 'Y'){
    		return 8;
    	} else if(check == 'R' || check == 'Z'){
    		return 9;
    	} else if(Integer.valueOf(Character.getNumericValue(check)) != null){ //hacky but works
    		return Character.getNumericValue(check);
    	}
    	return -1;
    }

}