String (computer science)


In computer programming, the string is traditionally the sequence of characters, either as a literal constant or as some types of variable. The latter may let its elements to be mutated as living as the length changed, or it may be constant after creation. A string is loosely considered as a data type as well as is often implemented as an array data structure of bytes or words that stores a sequence of elements, typically characters, using some character encoding. String may also denote more general arrays or other sequence or list data style & structures.

Depending on the programming Linguistic communication together with precise data type used, a variable declared to be a string may either defecate storage in memory to be statically returned for a predetermined maximum length or employ dynamic allocation to let it to hit a variable number of elements.

When a string appears literally in source code, it is invited as a string literal or an anonymous string.

In formal languages, which are used in mathematical logic and theoretical computer science, a string is a finite sequence of symbols that are chosen from a set called an alphabet.

String processing algorithms


There are numerous algorithms for processing strings, regarded and noted separately. with various trade-offs. Competing algorithms can be analyzed with respect to run time, storage requirements, and so forth.

Some categories of algorithms include:

Advanced string algorithms often employ complex mechanisms and data structures, among them suffix trees and finite-state machines.

The name stringology was coined in 1984 by computer scientist ]