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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.
Objects can contain other objects in their instance variables; this is known as object composition. For example, an object in the Employee class might contain (either directly or through a pointer) an object in the Address class, in addition to its own instance variables like "first_name" and "position".
Object-orientation (disambiguation), in which concepts are represented as objects Object-oriented programming (OOP), in which an object is an instance of a class or array; Object (IBM i), the fundamental unit of data storage in the IBM i operating system; Object file, the output of a compiler or other translator program (also known as "object ...
The second definition holds that an object is an entity experienced. The second definition differs from the first one in that the second definition allows for a subject to be an object at the same time. [3] One approach to defining an object is in terms of its properties and relations. Descriptions of all bodies, minds, and persons must be in ...
An object may be composed of components. A component is an object completely within the boundary of a containing object. A living thing may be an object, and is distinguished from non-living things by the designation of the latter as inanimate objects. Inanimate objects generally lack the capacity or desire to undertake actions, although humans ...
An object-based language is a programming language that provides a construct to encapsulate state and behavior as an object. A language that also supports inheritance or subtyping is classified as object-oriented . [ 1 ]
Object reference Objects can be accessed via object references. To invoke a method in an object, the object reference and method name are given, together with any arguments. Interfaces An interface provides a definition of the signature of a set of methods without specifying their implementation.
Object storage (also known as object-based storage [1] or blob storage) is a computer data storage approach that manages data as "blobs" or "objects", as opposed to other storage architectures like file systems, which manage data as a file hierarchy, and block storage, which manages data as blocks within sectors and tracks. [2]