public class Maskutil {
    /**
     * @param a
     *  The string that need to randomize
     *   vivek singh' will become 'ihg vkeivh'
     */
    public static String toRandomValue(String a) {
        return ShuffleRTM.shuffleString(a);
    }

    /**
     * @param a
     * This function will retrun MD5 hashcode of the string
     * @return String
     */
    public static String toHashValue(String a) {
        if (a == null)
            return "d41d8cd98f00b204e9800998ecf8427e"; // null MD5 value
        return ResultsetToRTM.getMD5(a).toString();
    }

    /**
     * @param a
     * This function will return digit characters of the string
     * @return
     * 
     */
    public static String toDigitValue(String a) {
        return StringCaseFormatUtil.digitString(a);
    }
}

string random(string)
string hash(string)
string digit(string)