Logical Operators in C-Language

Logical Operators:-

These are used to we want to test more than one condition & make decisions an exp of this kind which combines two or more relational exp’s is turned as a logical exp.

Logical operators are

Logical operators
Operator	Meaning
&&	Logical AND
||	Logical OR
!	Logical NOT

These are used to perform logical operations.
1 is True, 0 is False.

Logical AND:-
If both the operands are Non-zero, then condition is true.

Ex:-

a=1, b=1  (a&&b) - Condition is true

a=1, b=0 (a&&b) - Condition is false

It is used in the fallowing form

Expression 1 && Expression 2

Logical AND
Expression 1	Operator	Expression 2	Result
T	&&	T	T
T	&&	F	F
F	&&	T	F
F	&&	F	F

Logical OR:-

If any of the two operands is Non-zero. Then Condition becomes true. 

Ex:-
a=1, b=0  (a||b) - condition is true
a=0, b=0 (a||b) - condition is false

It is used in the fallowing form

Expression 1 || Expression 2

Logical OR
Expression 1	Operator	Expression 2	Result
T	||	T	T
T	||	F	T
F	||	T	T
F	||	F	F

Logical NOT:-
It is used to reverse the logical statement of its operand.
Ex:-
a=1, b=0  (a&&b) Condition is false
a=1, b=0 !(a&&b) Condition is true

It is used in the fallowing form

Not Expression = !(Expression)

Logical NOT
Operator	Expression	Result
!	T	F
!	F	T