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2. Null object pattern - Wikipedia

   en.wikipedia.org/wiki/Null_object_pattern

   In object-oriented computer programming, a null object is an object with no referenced value or with defined neutral (null) behavior.The null object design pattern, which describes the uses of such objects and their behavior (or lack thereof), was first published as "Void Value" [1] and later in the Pattern Languages of Program Design book series as "Null Object".

3. Object composition - Wikipedia

   en.wikipedia.org/wiki/Object_composition

   Object composition using UML properties to compose objects. In UML modeling, objects can be conceptually composed, independently of the implementation with a programming language. There are four ways of composing objects in UML: property, association, aggregation and composition: [4] A property represents an attribute of the class.

4. Object-oriented programming - Wikipedia

   en.wikipedia.org/wiki/Object-oriented_programming

   Among other developments was the Common Lisp Object System, which integrates functional programming and object-oriented programming and allows extension via a Meta-object protocol. In the 1980s, there were a few attempts to design processor architectures that included hardware support for objects in memory but these were not successful.

5. Curiously recurring template pattern - Wikipedia

   en.wikipedia.org/wiki/Curiously_recurring...

   Each method returns an object, allowing the calls to be chained together in a single statement without requiring variables to store the intermediate results. When the named parameter object pattern is applied to an object hierarchy, things can go wrong. Suppose we have such a base class:

6. Class (computer programming) - Wikipedia

   en.wikipedia.org/wiki/Class_(computer_programming)

   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 and behavior that are each either associated with a particular object or with all objects of that class.

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

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

   construction destruction ABAP Objects: data variable type ref to class . create object variable «exporting parameter = argument». [1][2] [3]APL (Dyalog) : variable←⎕NEW class «parameters»

8. Input/output (C++) - Wikipedia

   en.wikipedia.org/wiki/Input/output_(C++)

   In the C++ programming language, input/output library refers to a family of class templates and supporting functions in the C++ Standard Library that implement stream-based input/output capabilities. [1] [2] It is an object-oriented alternative to C's FILE-based streams from the C standard library. [3] [4]

9. Object pool pattern - Wikipedia

   en.wikipedia.org/wiki/Object_pool_pattern

   The object pool design pattern creates a set of objects that may be reused. When a new object is needed, it is requested from the pool. If a previously prepared object is available, it is returned immediately, avoiding the instantiation cost. If no objects are present in the pool, a new item is created and returned.