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

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

    Download QR code; Print/export ... ABAP Objects methods constructor ... ABAP Objects C++ using namespace ns; using ns::item ; C#

  3. Factory method pattern - Wikipedia

    en.wikipedia.org/wiki/Factory_method_pattern

    In object-oriented programming, the factory method pattern is a design pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact classes. Rather than by calling a constructor , this is accomplished by invoking a factory method to create an object.

  4. Factory (object-oriented programming) - Wikipedia

    en.wikipedia.org/wiki/Factory_(object-oriented...

    In class-based programming, a factory is an abstraction of a constructor of a class, while in prototype-based programming a factory is an abstraction of a prototype object. A constructor is concrete in that it creates objects as instances of one class, and by a specified process (class instantiation), while a factory can create objects by instantiating various classes, or by using other ...

  5. List of object-oriented programming languages - Wikipedia

    en.wikipedia.org/wiki/List_of_object-oriented...

    This is a list of notable programming languages with features designed for object-oriented programming (OOP). The listed languages are designed with varying degrees of OOP support. Some are highly focused in OOP while others support multiple paradigms including OOP.

  6. Object-oriented programming - Wikipedia

    en.wikipedia.org/wiki/Object-oriented_programming

    The following are notable software design patterns for OOP objects. [59] Function object: with a single method (in C++, the function operator, operator()) it acts much like a function; Immutable object: does not change state after creation; First-class object: can be used without restriction; Container object: contains other objects

  7. Fluent interface - Wikipedia

    en.wikipedia.org/wiki/Fluent_interface

    A common example is the iostream library in C++, which uses the << or >> operators for the message passing, sending multiple data to the same object and allowing "manipulators" for other method calls. Other early examples include the Garnet system (from 1988 in Lisp) and the Amulet system (from 1994 in C++) which used this style for object ...

  8. Interface (object-oriented programming) - Wikipedia

    en.wikipedia.org/wiki/Interface_(object-oriented...

    In object-oriented programming, an interface or protocol type [a] is a data type that acts as an abstraction of a class. It describes a set of method signatures , the implementations of which may be provided by multiple classes that are otherwise not necessarily related to each other. [ 1 ]

  9. Type introspection - Wikipedia

    en.wikipedia.org/wiki/Type_introspection

    In Objective-C, for example, both the generic Object and NSObject (in Cocoa/OpenStep) provide the method isMemberOfClass: which returns true if the argument to the method is an instance of the specified class. The method isKindOfClass: analogously returns true if the argument inherits from the specified class.