docs: public String convertIndexToString(int index)
      {
          String tempString = null;
          if ((index >= 0) && (index <= 9))
          {
              char value[] = new char[1];
              value[0] = (char)('0' + index);
              tempString = new String(value);         // 1 = '1'; 2 = '2'; etc...
          }
          else
              tempString = Constants.BLANK;
          return tempString;
      }