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In object-oriented programming, analysis and design, object identity is the fundamental property of every object that it is distinct from other objects. Objects have identity – are distinct – even when they are otherwise indistinguishable, i.e. equal. In this way, object identity is closely related to the philosophical meaning.
In software development, an object is an entity that has state, behavior, and identity. [ 1 ] : 78 An object can model some part of reality or can be an invention of the design process whose collaborations with other such objects serve as the mechanisms that provide some higher-level behavior.
Object-oriented programming uses objects, but not all of the associated techniques and structures are supported directly in languages that claim to support OOP. The features listed below are common among languages considered to be strongly class- and object-oriented (or multi-paradigm with OOP support), with notable exceptions mentioned.
The most popular and developed model of OOP is a class-based model, instead of an object-based model. In this model, objects are entities that combine state (i.e., data), behavior (i.e., procedures, or methods) and identity (unique existence among all other objects).
The listed languages are designed with varying degrees of OOP support. Some are highly focused in OOP while others support multiple paradigms including OOP. [ 1 ] For example, C++ is a multi- paradigm language including OOP; [ 2 ] however, it is less object-oriented than other languages such as Python [ 3 ] and Ruby .
Object identity may refer to: Identity (object-oriented programming) Equality (objects) This page was last edited on 29 December 2019, at 15:27 (UTC). Text is ...
In object-oriented design, a pattern is a named description of a problem and solution that can be applied in new contexts; ideally, a pattern advises us on how to apply its solution in varying circumstances and considers the forces and trade-offs.
OBJECT« IMPLEMENTS interfaces». instance-members. END OBJECT. END CLASS name. INTERFACE-ID. name« INHERITS« FROM» interfaces». members. END INTERFACE name. — Cobra class name «inherits parentclass» «implements interfaces» Tab ↹ members: interface name «inherits parentinterfaces» Tab ↹ members: namespace name Tab ↹ members ...