Imperative programming The term is used in opposition to declarative programming, which expresses what the program should accomplish without prescribing how to do it in terms of sequences of actions to be taken. Functional and logic programming are examples of a more declarative approach. Imperative, procedural, and declarative programming[edit] Procedural programming could be considered a step towards declarative programming. A programmer can often tell, simply by looking at the names, arguments and return types of procedures (and related comments), what a particular procedure is supposed to do, without necessarily looking at the details of how it achieves its result. Declarative programming is a non-imperative style of programming in which programs describe their desired results without explicitly listing commands or steps that must be performed. In logical programming languages, programs consist of logical statements, and the program executes by searching for proofs of the statements. Overview[edit]
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Unified Modeling Language The Unified Modeling Language (UML) is a general-purpose modeling language in the field of software engineering, which is designed to provide a standard way to visualize the design of a system.[1] It was created and developed by Grady Booch, Ivar Jacobson and James Rumbaugh at Rational Software during 1994–95 with further development led by them through 1996.[1] In 1997 it was adopted as a standard by the Object Management Group (OMG), and has been managed by this organization ever since. In 2000 the Unified Modeling Language was also accepted by the International Organization for Standardization (ISO) as an approved ISO standard. Since then it has been periodically revised to cover the latest revision of UML.[2] Overview[edit] A collage of UML diagrams The Unified Modeling Language (UML) offers a way to visualize a system's architectural blueprints in a diagram (see image), including elements such as:[3] History[edit] History of object-oriented methods and notation Before UML 1.x[edit] [edit]
Programming paradigm A programming paradigm is a fundamental style of computer programming, a way of building the structure and elements of computer programs. Capablities and styles of various programming languages are defined by their supported programming paradigms; some programming languages are designed to follow only one paradigm, while others support multiple paradigms. There are six main programming paradigms: imperative, declarative, functional, object-oriented, logic and symbolic programming.[1][2][3] Overview[edit] Overview of the various programming paradigms[4]:5 In object-oriented programming, programmers can think of a program as a collection of interacting objects, while in functional programming a program can be thought of as a sequence of stateless function evaluations. Programming paradigms can also be compared with programming models which are abstractions of computer systems. History[edit] Machine code[edit] Procedural languages[edit] All these languages follow the procedural paradigm.
HDfury.com Les meilleurs livres pour le développement WEB Le livre sur MySQL 5 est vraiment très complet sur ce que peut être ce SGBDR. On pourra y voir les notions fondamentales des bases de données sur ce que peut être une base de données (BDD), les cas d'utilisations, et tout le système afin de permettre, aussi bien au débutant qu'à l'expert désireux de pousser ses connaissances, de pouvoir manipuler cet outil. Ce livre montre aussi toutes les différentes étapes d'installation de MySQL, aussi bien sous Windows que sous Linux, tout en indiquant la structure du système de fichiers d'une façon vraiment simpliste et compréhensible, mais surtout l'administration de A à Z afin d'optimiser le plus possible ses BDD pour un maximum d'efficacité. Le plus gros du sujet se trouve justement être la partie algèbre relationnelle, qui montre bien toutes les façons d'interroger, de mettre à jour et de modifier une BDD afin de permettre à l'utilisateur de pouvoir gérer les siennes comme il se doit. Il y a deux très bonnes parties dans ce livre.
Programming language The earliest programming languages preceded the invention of the digital computer and were used to direct the behavior of machines such as Jacquard looms and player pianos.[1] Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. Many programming languages require computation to be specified in an imperative form (i.e., as a sequence of operations to perform), while other languages utilize other forms of program specification such as the declarative form (i.e. the desired result is specified, not how to achieve it). Definitions[edit] A programming language is a notation for writing programs, which are specifications of a computation or algorithm.[2] Some, but not all, authors restrict the term "programming language" to those languages that can express all possible algorithms.[2][3] Traits often considered important for what constitutes a programming language include: Function and target Abstractions
Future Media Concepts - Authorized Apple, Adobe, Autodesk, Avid, and NewTek Training by Certified Instructors Les meilleurs livres pour le développement WEB Le livre sur MySQL 5 est vraiment très complet sur ce que peut être ce SGBDR. On pourra y voir les notions fondamentales des bases de données sur ce que peut être une base de données (BDD), les cas d'utilisations, et tout le système afin de permettre, aussi bien au débutant qu'à l'expert désireux de pousser ses connaissances, de pouvoir manipuler cet outil. Ce livre montre aussi toutes les différentes étapes d'installation de MySQL, aussi bien sous Windows que sous Linux, tout en indiquant la structure du système de fichiers d'une façon vraiment simpliste et compréhensible, mais surtout l'administration de A à Z afin d'optimiser le plus possible ses BDD pour un maximum d'efficacité. Pour finir, ce livre est vraiment très bien pour quiconque voulant apprendre et savoir se servir du système de BDD de SUN. Il y a deux très bonnes parties dans ce livre. En résumé, ce livre est très bien conçu exceptée la partie sauvegarde du système qui manque un peu d'explications.
Syntax (programming languages) In computer science, the syntax of a computer language is the set of rules that defines the combinations of symbols that are considered to be a correctly structured document or fragment in that language. This applies both to programming languages, where the document represents source code, and markup languages, where the document represents data. The syntax of a language defines its surface form.[1] Text-based computer languages are based on sequences of characters, while visual programming languages are based on the spatial layout and connections between symbols (which may be textual or graphical). Documents that are syntactically invalid are said to have a syntax error. Computer language syntax is generally distinguished into three levels: Words – the lexical level, determining how characters form tokens;Phrases – the grammar level, narrowly speaking, determining how tokens form phrases;Context – determining what objects or variables names refer to, if types are valid, etc. 'a' + 1 a + b
Amazon Web Services If a programming language was a boat… | CompSci.ca/blog This one is inspired by a recent forum post, that still leaves me in amazement. Hi, Im wondering how i can create a boat in turing and if someone can post a example. This makes no sense, since one doesn’t normally make water vehicles in Turing, the programming language. Though this got me thinking — if a programming language was a boat, what would it be? Turing Turing would definitely be a kayak (thank you for comments). Original photo by naokomc Java Java is a cargo ship. Original photo by cfarivar Perl Perl is a tugboat. Original photo by xeeliz Ruby Ruby is difficult to describe. Original photo by Tony Falcon PHP is a bamboo raft. Original photo by permanently scatterbrained C is a nuclear submarine. Original photo by Ryan C. HTML isn’t really a programming language boat. Original photo by ascendeddaniel There’s a lot more to this, and it’s all up for discussion.
Logic programming Logic programming is a programming paradigm based on formal logic. Programs written in a logical programming language are sets of logical sentences, expressing facts and rules about some problem domain. Together with an inference algorithm, they form a program. Major logic programming languages include Prolog and Datalog. A form of logical sentences commonly found in logic programming, but not exclusively, is the Horn clause. p(X, Y) if q(X) and r(Y) Logical sentences can be understood purely declaratively. The programmer can use the declarative reading of logic programs to verify their correctness. History[edit] The use of mathematical logic to represent and execute computer programs is also a feature of the lambda calculus, developed by Alonzo Church in the 1930s. In 1997, the Association of Logic Programming bestowed to fifteen recognized researchers in logic programming the title Founders of Logic Programming to recognize them as pioneers in the field:[1] Prolog[edit] H :- B1, …, Bn.
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