Sunday, January 22, 2012


A Constant is a quantity whose value cannot be changed ,it cannot be changed like a Variable. There are Numeric Constants and String Constants.
Numeric Constant:
                Numeric Constant consists of integers, single-precision or double- precision numbers.
String Constant:
                A String Constant  is a sequence of alphanumeric characters enclosed in double quotation marks. The maximum length of a String Constant is 255 characters.

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