Variable and Constants and Their Types
Variable and Its Types:
Variable: -
It is a space or a location where we keep some constant value. There are four types of variable in C language. (1) Integer variable (2) Float variable (3) Character variable (4) String variable
(1) Integer variable: -
A variable or a place we keep or put only integer constant is called integer variable. It is declared a deserved word ‘int’. For example a=5, then a will be integer variable.
(2) Float variable: -
A location or variable where we put some float or real data is called float variable. It is declared a deserved word ‘float’. For example a=5.55 then a will be a float variable.
(3) Character variable: -
A variable which keep only the character constant is called character variable. It is declared a deserved word ‘char’. For example a=’1’, now a will be a character variable.
(4) String variable: -
A variable which can store a string constant is called a string variable. For example a[8]= “ pakistan ” ; then a[8] will be string variable.
Constant and its types
Constant: -
A fix or unchangeable value in the program is called a constant value. There are four types of constant in C language. (1)Integer constant (2) Real or Float constant (3) Character constant (d) String constant
(1) Integer constant: -
A numerical value without a decimal is called integer constant. Or A non-frictional (+,-) fix value is called integer constant. For example +225, -555, 500 etc.
(2) Real or Floating constant: -
A frictional (+,-) fix value is called real or floating constant or Numeric values that an integer as well as a decimal part are called real or floating constant. For example +25.32, -58.679, 28.321 etc.
(3) Character constant: -
A single character when it is enclosed in single quotes is called character constant. For example ‘a’, ‘1’, ‘M’ etc.
(4) String constant: -
The combinations of characters when those are enclosed in double quotes are called string constant. For example “Pakistan”, “Phone-0966” etc.
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