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Object-oriented programming (OOP) is a programming paradigm based on the concept of objects, [1] which can contain data and code: data in the form of fields (often known as attributes or properties), and code in the form of procedures (often known as methods).
It is a follow-on and a significant extension of the Rexx programming language (called here "classic Rexx"), retaining all the features and syntax while adding full object-oriented programming (OOP) capabilities and other new enhancements. Following its classic Rexx influence, ooRexx is designed to be easy to learn, use, and maintain.
Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns.The book was written by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides, with a foreword by Grady Booch.
The listed languages are designed with varying degrees of OOP support. Some are highly focused in OOP while others support multiple paradigms including OOP. [ 1 ] For example, C++ is a multi- paradigm language including OOP; [ 2 ] however, it is less object-oriented than other languages such as Python [ 3 ] and Ruby .
General Responsibility Assignment Software Patterns (or Principles), abbreviated GRASP, is a set of "nine fundamental principles in object design and responsibility assignment" [1]: 6 first published by Craig Larman in his 1997 [citation needed] book Applying UML and Patterns.
Class diagram. The Booch method [1] is a method for object-oriented software development. It is composed of an object modeling language, [2] an iterative object-oriented development process, [3] and a set of recommended practices.
Standard method combination in ANSI common lisp. The Common Lisp Object System (CLOS) is the facility for object-oriented programming in ANSI Common Lisp.CLOS is a powerful dynamic object system which differs radically from the OOP facilities found in more static languages such as C++ or Java.
Hand code is source code which does not have tools that can edit it at a more abstract level. Hand code must, by definition, be edited and maintained entirely by hand. Some code can be edited either using an editor/IDE or by hand, but hand code is differentiated from derived code in that it requires human involvement to create and maintain it over time.