code: public MonetaryFormat postfixCode() {
          if (!codePrefixed)
              return this;
          else
              return new MonetaryFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
                      shift, roundingMode, codes, codeSeparator, false);
      }
docs: Postfix formatted output with currency code. This configuration is not relevant for parsing.