Null Object pattern — Null object redirects here. For the concept in category theory, see Initial object. In object oriented computer programming, a Null Object is an object with defined neutral ( null ) behavior. The Null Object design pattern describes the uses of… … Wikipedia
Null (computer programming) — Null has several meanings in computer programming.;Null pointer or null reference * Null is a special pointer value (or other kind of object reference) used to signify that a pointer intentionally does not point to (or refer to) an object. Such a … Wikipedia
Reference (computer science) — This article is about a general notion of reference in computing. For the more specific notion of reference used in C++, see Reference (C++). In computer science, a reference is a value that enables a program to indirectly access a particular… … Wikipedia
Reference (C++) — In the C++ programming language, a reference is a simple reference datatype that is less powerful but safer than the pointer type inherited from C. The name C++ reference may cause confusion, as in computer science a reference is a general… … Wikipedia
Null House — U.S. National Register of Historic Places … Wikipedia
Null fill — is used in radio antenna systems which are located on mountains or tall towers, to prevent too much of the signal from overshooting the nearest part of intended coverage area. Phasing is used between antenna elements to take power away from the… … Wikipedia
NULL — Pour le musicien japonais, voir Kazuyuki K. Null. NULL est un mot clef présent dans de nombreux langages informatiques, et qui désigne l état d un pointeur qui n a pas de cible ou d une variable qui n a pas de valeur. La notion de valeur ou de… … Wikipédia en Français
Null coalescing operator — The null coalescing operator (or Logical Defined Or Operator) is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, including C#,[1] and Perl as of version 5.10.[2] In Scheme, boolean … Wikipedia
Null-subject language — In linguistic typology, a null subject language is a language whose grammar permits an independent clause to lack an explicit subject. Such a clause is then said to have a null subject. Typically, null subject languages express person, number,… … Wikipedia
Null subject language — In linguistic typology, a null subject language is a language whose grammar permits an independent clause to lack an explicit subject. Such a clause is then said to have a null subject. Typically, null subject languages express person, number,… … Wikipedia