Logical operators

                            Logical operators

Operator	Name
&&	logical and
||	logical or
!	logical not

Not (!) T=F F=T

Operator	And (&&)	Or ( || )
T	T	T
T	F	T
F	F	T
F	F	F

Example:-
  int a=10, b=20

• a>5 && b<15                               (T)

            (T)         (T)

• a>5||b<15                                    (F)

           (T)      (F)

• a>5||b<15                                    (T)

          (T)      (F)

• !(b<15)                                        (T)

             (F)

• !(a>5)                                          (F)

            (T)

 

Operator	Description	Example
==	Checks if the value of two operands is equal or not, if yes then condition becomes true.	(A == B) is not true.
!=	Checks if the value of two operands is equal or not, if values are not equal then condition becomes true.	(A != B) is true.
>	Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true.	(A > B) is not true.
<	Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true.	(A < B) is true.
>=	Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true.	(A >= B) is not true.
<=	Checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true.	(A <= B) is true.
&&	Called Logical AND operator. If both the operands are non zero then then condition becomes true.	(A && B) is true.
||	Called Logical OR Operator. If any of the two operands is non zero then then condition becomes true.	(A || B) is true.
!	Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true then Logical NOT operator will make false.	!(A && B) is false.