Smalltalk is an object-oriented Object-oriented programming is a programming paradigm that uses "objects" – data structures consisting of datafields and methods together with their interactions – to design applications and computer programs. Programming techniques may include features such as information hiding, data abstraction, encapsulation, modularity,, dynamically typed In computer science, a type system may be defined as "a tractable syntactic method for proving the absence of certain program behaviors by classifying phrases according to the kinds of values they compute.". Loosely, a type system associates one type(s) with each program value; by examining the relation between types and expressions, a, reflective In computer science, reflection is the process by which a computer program can observe and modify its own structure and behavior. The programming paradigm driven by reflection is called reflective programming. It is a particular kind of metaprogramming programming Computer programming is the process of writing, testing, debugging/troubleshooting, and maintaining the source code of computer programs. This source code is written in a programming language. The code may be a modification of an existing source or something completely new. The purpose of programming is to create a program that exhibits a certain language A programming language is an artificial language designed to express computations that can be performed by a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine, to express algorithms precisely, or as a mode of human communication. Smalltalk was created as the language to underpin the "new world" of computing exemplified by "human–computer symbiosis."[1] It was designed and created in part for educational Education in its broadest sense is any act or experience that has a formative effect on the mind, character or physical ability of an individual. In its technical sense education is the process by which society deliberately transmits its accumulated knowledge, skills and values from one generation to another use, more so for constructionist learning Constructionist learning is inspired by the constructivist theory that individual learners construct mental models to understand the world around them. However, constructionism holds that learning can happen most effectively when people are also active in making tangible objects in the real world. In this sense, constructionism is connected with, at the Learning Research Group (LRG) of Xerox PARC PARC , formerly Xerox PARC, is a research and development company in Palo Alto, California with a distinguished reputation for its contributions to information technology by Alan Kay Alan Curtis Kay is an American computer scientist, known for his early pioneering work on object-oriented programming and windowing graphical user interface design, and for coining the phrase, "The best way to predict the future is to invent it." He is the president of the Viewpoints Research Institute, and an Adjunct Professor of, Dan Ingalls Daniel Henry Holmes Ingalls, Jr. is a pioneer of object-oriented computer programming and the principal architect, designer and implementor of five generations of Smalltalk environments. He designed the bytecoded virtual machine that made Smalltalk practical in 1976. He also invented Bit blit, the general-purpose graphical operation that underlies, Adele Goldberg Adele Goldberg is a computer scientist who wrote or co-wrote books on the programming language Smalltalk-80. In the 1970s she worked for Xerox's PARC laboratory on the Xerox Alto. According to Adele, Steve Jobs demanded a demonstration of the Smalltalk System, which she refused to give him. Her superiors eventually ordered her to, at which point, Ted Kaehler, Scott Wallace, and others during the 1970s.
The language was first generally released as Smalltalk-80 and has been widely used since. Smalltalk-like languages are in continuing active development, and have gathered loyal communities of users around them. ANSI Smalltalk was ratified in 1998 and represents the standard version of Smalltalk.
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Believe it or not, between 1.5 and 2 million developers are still working with the 50-year-old programming language . In other words, little has changed ...
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someObject or someItem Although it is only a convention and Smalltalk does not enforce it the scheme serves well to simulate the documentation aspects of a hierarchical type system Although Monster is intended to serve as an abstract class we may wish to create instances in the process of testing its protocol Generally all methods added to classes should be tested
