DateTimeFormatter toFormatter(ResolverStyle resolverStyle,Chronology chrono){
  return toFormatter(Locale.getDefault(Locale.Category.FORMAT),resolverStyle,chrono);
}

DateTimeFormatter toFormatter ( ResolverStyle resolverStyle , Chronology chrono ) { return toFormatter ( Locale . getDefault ( Locale . Category . FORMAT ) , resolverStyle , chrono ) ; }
completes this builder by creating the formatter . this uses the default locale .
