Object-oriented programming: Difference between revisions

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* Languages called "pure" OO languages, because everything in them is treated consistently as an object, from primitives such as characters and punctuation, all the way up to whole classes, prototypes, blocks, modules, etc. They were designed specifically to facilitate, even enforce, OO methods. Examples: [[Ruby (programming language)|Ruby]], [[Scala (programming language)|Scala]], [[Smalltalk]], [[Eiffel (programming language)|Eiffel]], [[Emerald (programming language)|Emerald]],<ref>{{cite web|url=http://www.emeraldprogramminglanguage.org/|title=The Emerald Programming Language| date=26 February 2011}}</ref> [[JADE (programming language)|JADE]], [[Self (programming language)|Self]], [[Raku (programming language)|Raku]].

* Languages designed mainly for OO programming, but with some procedural elements. Examples: [[Java (programming language)|Java]], [[Python (programming language)|Python]], [[C++]], [[C Sharp (programming language)|C#]], [[Delphi (programming language)|Delphi]]/[[Object Pascal]], [[VB.NET]].

* Languages that are historically [[Procedural programming|procedural languages]], but have been extended with some OO features. Examples: [[PHP]], [[JavaScript]], [[Object REXX|ooRexx]], [[Perl]], [[Visual Basic]] (derived from BASIC), [[MATLAB]], [[COBOL 2002]], [[Fortran 2003]], [[ABAP]], [[Ada 95]], [[Pascal (programming language)|Pascal]].

* Languages with most of the features of objects (classes, methods, inheritance), but in a distinctly original form. Examples: [[Oberon (programming language)|Oberon]] (Oberon-1 or Oberon-2).

* Languages with [[abstract data type]] support which may be used to resemble OO programming, but without all features of object-orientation. This includes [[object-based|object-''based'']] and [[prototype-based]] languages. Examples: [[JavaScript]], [[Lua (programming language)|Lua]], [[Modula-2]], [[CLU (programming language)|CLU]].