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2. Abstraction (computer science) - Wikipedia

   en.wikipedia.org/wiki/Abstraction_(computer_science)

   Various object-oriented programming languages offer similar facilities for abstraction, all to support a general strategy of polymorphism in object-oriented programming, which includes the substitution of one data type for another in the same or similar role.

3. Object-oriented programming - Wikipedia

   en.wikipedia.org/wiki/Object-oriented_programming

   In object oriented programming, objects provide a layer which can be used to separate internal from external code and implement abstraction and encapsulation. External code can only use an object by calling a specific instance method with a certain set of input parameters, reading an instance variable, or writing to an instance variable.

4. Abstract data type - Wikipedia

   en.wikipedia.org/wiki/Abstract_data_type

   Modern object-oriented languages, such as C++ and Java, support a form of abstract data types. When a class is used as a type, it is an abstract type that refers to a hidden representation. In this model, an ADT is typically implemented as a class, and each instance of the ADT is usually an object of that class.

5. List of abstractions (computer science) - Wikipedia

   en.wikipedia.org/wiki/List_of_abstractions...

   The foundation of class-based object-oriented programming. Interface: A group of related methods with empty bodies, used to define methods that can be applied to different data types. Widely used in object-oriented programming for abstraction and multiple inheritance. Module

6. Encapsulation (computer programming) - Wikipedia

   en.wikipedia.org/wiki/Encapsulation_(computer...

   All object-oriented programming (OOP) systems support encapsulation, [2] [3] but encapsulation is not unique to OOP. Implementations of abstract data types, modules, and libraries also offer encapsulation. The similarity has been explained by programming language theorists in terms of existential types. [4]

7. Composition over inheritance - Wikipedia

   en.wikipedia.org/wiki/Composition_over_inheritance

   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]

8. Method overriding - Wikipedia

   en.wikipedia.org/wiki/Method_overriding

   Method overriding, in object-oriented programming, is a language feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its superclasses or parent classes.

9. Comparison of programming languages (object-oriented ...

   en.wikipedia.org/wiki/Comparison_of_programming...

   This comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others manipulate data structures. Object construction and destruction