| LC control no. | sh2015001723 |
|---|---|
| Topical heading | Data types (Computer science) |
| See also | Programming languages (Electronic computers) |
| Found in | Work cat: Chen, S. Variational Typing and Its Applications, 2015. What is IT WWW site, Aug. 31, 2015 (A data type in a programming language is a set of data with values having predefined characteristics such as integer, floating point unit number, character, string, and pointer. Usually, a limited number of such data types come built into a language. The language usually specifies the range of values for a given data type, how the values are processed by the computer, and how they are stored. With object-oriented programming, a programmer can create new data types to meet application needs. Such an exercise as known as "data abstraction" and the result is a new class of data. Such a class can draw upon the "built-in" data types such as number integers and characters. For example, a class could be created that would abstract the characteristics of a purchase order. The purchase order data type would contain the more basic data types of numbers and characters and could also include other object defined by another class. The purchase order data type would have all of the inherent services that a programming language provided to its built-in data types. Languages that leave little room for programmers to define their own data types are said to be strongly-typed languages) Richardson, J. Automating changes of data type in functional programs, 1995. Moody, S. Automated data type identification and localization using statistical analysis data identification, 2008. Nipkow, T. Formal verification of data type refinement : theory and practice, 1989. |
| Not found in | McGraw Hill Dictionary of Scientific and Technical Terms, 2003 |
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