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Objects are instances of a class. Object-oriented programming ( OOP) is a programming paradigm based on the concept of objects, [1] which can contain data and code: data in the form of fields (often known as attributes or properties ), and code in the form of procedures (often known as methods ). In OOP, computer programs are designed by making ...
In object-oriented programming, inheritance is the mechanism of basing an object or class upon another object ( prototype-based inheritance) or class ( class-based inheritance ), retaining similar implementation. Also defined as deriving new classes ( sub classes) from existing ones such as super class or base class and then forming them into a ...
In object-oriented programming, a class defines the shared aspects of objects created from the class. The capabilities of a class differ between programming languages , but generally the shared aspects consist of state ( variables ) and behavior ( methods ) that are each either associated with an particular object or with all objects of that class.
This is a list of notable programming languages with object-oriented programming (OOP) features, which are also listed in Category:Object-oriented programming languages. Note that, in some contexts, the definition of an "object-oriented programming language" is not exactly the same as that of a "programming language with object-oriented ...
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
In object-oriented programming, a factory is an object for creating other objects; formally, it is a function or method that returns objects of a varying prototype or class [1] from some method call, which is assumed to be "new". [a] More broadly, a subroutine that returns a "new" object may be referred to as a "factory", as in factory method ...
Abstraction (computer science) In software engineering and computer science, abstraction is the process of generalizing concrete details, [1] such as attributes, away from the study of objects and systems to focus attention on details of greater importance. [2] Abstraction is a fundamental concept in computer science and software engineering ...
In programming language theory and type theory, polymorphism is the use of a single symbol to represent multiple different types. [1] In object-oriented programming, polymorphism is the provision of a single interface to entities of different types. [2] The concept is borrowed from a principle in biology where an organism or species can have ...