Monday, September 19, 2011

Variables In Programming Language

A variable is a symbolic name for a memory location in which data can be stored and subsequently recalled. Variables are used for holding data values so that they can be utilized in various computations in a program. All

variables have two important attributes:

· A type which is established when the variable is defined (e.g., integer, real, character). Once defined, the type of a C++ variable cannot be changed.

· A value which can be changed by assigning a new value to the variable. The kind of values a variable can assume depends on its type. For example, an integer variable can only take integer values (e.g., 2, 100, -12).

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