public final String toString()
public String toString()
  public final String toString()  {        if (language.length() == 0 && country.length() == 0)            return "";        else if (country.length() == 0 && variant.length() == 0)                return language;        StringBuffer result = new StringBuffer(language);        result.append('_').append(country);    if (variant.length() != 0)      result.append('_').append(variant);        return result.toString();    }