Class hierarchy: Difference between revisions

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''This article is {{about |the computer science concept. For |the sociology concept, please see [[social|Social class]].''}}

A '''class hierarchy''' or '''inheritance tree''' in [[computer science]] is a classification of object types, denoting objects as the instantiations of [[Class (computer programming)|classes]] (class is like a blueprint, the object is what is built from that blueprint) inter-relating the various classes by relationships such as "inherits", "extends", "is an abstraction of", "an interface definition".<ref name="University of Amsterdam ">{{Cite web |url=https://staff.fnwi.uva.nl/a.j.p.heck/Courses/JAVAcourse/ch3/s1.html |title=OOP: Class Hierarchy |website=staff.fnwi.uva.nl |access-date=2017-10-11}}</ref> In [[object-oriented programming]], a class is a template that defines the state and behavior common to objects of a certain kind. A class can be defined in terms of other classes.<ref name="University of Amsterdam " />