code: public static boolean localeSupportsCurrencyRetrieval (@Nullable final Locale aLocale)
    {
      return aLocale != null && aLocale.getCountry () != null && aLocale.getCountry ().length () == 2;
    }
docs: Check if a currency could be available for the given locale.
  
  @param aLocale
  The locale to check.
  @return <code>true</code> if a currency is available for the given locale,
  <code>false</code> otherwise.