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).
Comments
Post a Comment
Give your valuable Comment...