code: public final void setCountryCode(final String pcountryCode, final Locale plocale) {
      if (StringUtils.isEmpty(pcountryCode)) {
        defaultCountryData = null;
      } else {
        defaultCountryData =
            CreatePhoneCountryConstantsClass.create(plocale).countryMap().get(pcountryCode);
      }
    }
docs: set country code.
  
  @param pcountryCode iso code of country
  @param plocale locale to read properties in the correct language