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Inheritance (object-oriented programming) From Wikipedia, the free encyclopedia This article  needs attention from an expert in Computer science .  Please add a  reason  or a  talk  parameter to this template to explain the issue with the article.  WikiProject Computer science  (or its  Portal ) may be able to help recruit an expert.   (August 2009) In  object-oriented programming  (OOP),  inheritance  is when an object or class is based on another object or class, using the same implementation (inheriting from a class) or specifying implementation to maintain the same behavior (realizing an interface; inheriting behavior). It is a mechanism for  code reuse  and to allow independent extensions of the original software via public classes and interfaces. The relationships of objects or classes through inheritance give rise to a  hierarchy . Inheritance was invented in 1967 for Simula . [ ...

Class (computer programming) From Wikipedia, the free encyclopedia In  object-oriented programming , a  class  is an extensible program-code-template for creating  objects , providing initial values for state ( member variables ) and implementations of behavior (member functions,  methods ). [1] [2]  In many languages, the class name is used as the name for the class (the template itself), the name for the default  constructor  of the class ( subroutine  that creates objects), and as the  type  of objects generated by the type, and these distinct concepts are easily conflated. [2] When an object is created by a constructor of the class, the resulting object is called an  instance  of the class, and the member variables specific to the object are called  instance variables , to contrast with the  class variables  shared across the class. In some languages, classes are only a compile-time featu...