code: public static FractionStyleBuilder create(final String name, final Locale locale) {
          checker.checkStyleName(name);
          return new FractionStyleBuilder(name, locale);
      }
docs: Create a new number style builder with the name name, minimum integer digits is
  minIntDigits and decimal places is decPlaces.
  
  @param name   The name of the number style, this name must be unique.
  @param locale The locale used
  @return the builder