Variables

The defined type of memory area where the value is stored is called variable. Variables are the data item whose values may vary during the execution of the program. A specific location or the address …

There are some specific rules for constructing variable names in C language: (a) Variable name may be a combination of alphabet digits or underscores and its lengths should not exceed 8 characters, some compilers allow …

All the variables must be declared before their use. It does two things: (a) Tell the compiler what the variable name is. (b) Specify what type of data that a variable will hold. Syntax of …

To assign values to the variables, assignment operator (=) is used. Syntax of assigning values: variable declaration; Variable_name = value; Example of assigning values: Int i , j; j = 5 ; i = 0 …

Scope of variable means where the variable stands in the program. All variables may not necessary be available to all statements in a program. Variables can have two types of scope: a) Local: When a …