Inheritance (object-oriented programming)In object-oriented programming, inheritance is the mechanism of basing an object or class upon another object (prototype-based inheritance) or class (class-based inheritance), retaining similar implementation. It is also defined as deriving new classes (sub classes) from existing ones such as super class or base class and then forming them into a hierarchy of classes.Object compositionIn computer science, object composition and object aggregation are closely related ways to combine objects or data types into more complex ones. In conversation, the distinction between composition and aggregation is often ignored. Common kinds of compositions are objects used in object-oriented programming, tagged unions, sets, sequences, and various graph structures. Object compositions relate to, but are not the same as, data structures.
Software design patternA software design pattern describes a reusable solution to a commonly needed behavior in software. A design pattern is not a rigid structure to be copied directly into source code. Rather, it is a description of and a template for solving a particular type of problem that can be used in many different contexts, including different programming languages and computing platforms.
Grady BoochGrady Booch (born February 27, 1955) is an American software engineer, best known for developing the Unified Modeling Language (UML) with Ivar Jacobson and James Rumbaugh. He is recognized internationally for his innovative work in software architecture, software engineering, and collaborative development environments.John VlissidesJohn Matthew Vlissides (August 2, 1961 – November 24, 2005) was a software engineer known mainly as one of the four authors (referred to as the Gang of Four) of the book Design Patterns: Elements of Reusable Object-Oriented Software. Vlissides referred to himself as "#4 of the Gang of Four and wouldn't have it any other way". Education and careerVlissides studied electrical engineering at University of Virginia and Stanford University.
Ralph Johnson (computer scientist)Ralph E. Johnson is a Research Associate Professor in the Department of Computer Science at the University of Illinois at Urbana-Champaign. He is a co-author of the influential computer science textbook Design Patterns: Elements of Reusable Object-Oriented Software, for which he won the 2010 ACM SIGSOFT Outstanding Research Award. In 2006 he was awarded the Dahl–Nygaard Prize for his contributions to the state of the art embodied in that book as well.Erich GammaErich Gamma is a Swisscomputer scientist and one of the four co-authors (referred to as "Gang of Four") of the software engineering textbook Design Patterns: Elements of Reusable Object-Oriented Software. Gamma, along with Kent Beck, co-wrote the JUnit software testing framework which helped create test-driven development and helped influence and revolutionized the whole software industry.
Object-oriented programmingObject-oriented programming (OOP) is a programming paradigm based on objects – software entities that encapsulatedata and function(s). An OOP computer program consists of objects that interact with one another. An OOP language is one that provides object-oriented programming features, but as the set of features that contribute to OOP is contested, classifying a language as OOP – and the degree to which it supports OOP – is debatable.
C++General-purpose programming languageC++ is a high-level, general-purpose programming language created by Danish computer scientist Bjarne Stroustrup. First released in 1985 as an extension of the C programming language, adding object-oriented (OOP) functionality and later expanding significantly with the addition of functional programming features.Richard HelmRichard Helm is one of the co-authors (referred to as the "Gang of Four") of the influential Design Patterns book. In 2006 he was awarded the Dahl–Nygaard Prize for his contributions to the state of the art embodied in that book. He received the ACM SIGSOFT Outstanding Research Award in 2010.
Software engineeringSoftware engineering is a branch of both computer science and engineering focused on designing, developing, testing, and maintainingsoftware applications. It involves applying engineering principles and computer programming expertise to develop software systems that meet user needs. A software engineer applies a software development process to define, implement, test, manage, and maintain software systems.
SmalltalkSmalltalk is a purely object-oriented programming language that was originally created in the 1970s for educational use, specifically for constructionist learning, but later found use in business. It was created at Xerox PARC by Learning Research Group (LRG) scientists, including Alan Kay, Dan Ingalls, Adele Goldberg, Ted Kaehler, Diana Merry, and Scott Wallace.*As an Amazon Associate I earn from qualifying purchases.