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{{Short description|Object with no referenced value or with defined neutral ("null") behavior}}
{{Redirect|Null object|the concept in category theory|Initial object}}
In [[Object-oriented programming|object-oriented]] [[computer programming]], a '''null object''' is an [[Object (computer science)|object]] with no referenced value or with defined neutral (''null'') behavior. The null object [[design pattern]], which describes the uses of such objects and their behavior (or lack thereof), was first published as "Void Value"<ref>{{Cite conference
| first = Thomas
| last = Kühne
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