==See also==*Nullable type*Option type==External links==*Jeffrey Walkers' account of the Null Object Pattern*Martin Fowlers' description of Special Case, a slightly more general pattern*Null Object Pattern Revisited*Introduce Null Object refactoring*Why NULL Is Bad by Yegor Bugayenko*SourceMaking Tutorial==References==
На диаграмме классов в языке UML шаблон проектирования представлен следующим образом:== Примечания ==== Ссылки ==* Jeffrey Walkers' account of the Null Object Pattern* Martin Fowlers' description of Special Case, a slightly more general pattern* Null Object Pattern Revisited* Introduce Null Object refactoring