Logical Operators with Examples in C#

In C#, Logical Operators are useful to perform the logical operation between two operands like AND, OR, and NOT based on our requirements. The Logical Operators will always work with Boolean expressions (true or false) and return Boolean values.

The operands in logical operators must always contain only Boolean values. Otherwise, Logical Operators will throw an error.

The following table lists the different types of operators available in c# logical operators.

Operator	Name	Description	Example (a = true, b = false)
&&	Logical AND	It returns true if both operands are non-zero.	a && b (false)
\|\|	Logical OR	It returns true if any one operand becomes a non-zero.	a \|\| b (true)
!	Logical NOT	It will return the reverse of a logical state that means if both operands are non-zero, it will return false.	!(a && b) (true)

If we use Logical AND, OR operators in c# applications, those will return the result as shown below for different inputs.

Operand1	Operand2	AND	OR
true	true	true	true
true	false	false	true
false	true	false	true
false	false	false	false

If you observe the above table, if any one operand value becomes false, then the logical AND operator will return false. The logical OR operator will return true if any one operand value becomes true.

If we use the Logical NOT operator in our c# applications, it will return the results like as shown below for different inputs.

Operand	NOT
true	false
false	true

If you observe the above table, the Logical NOT operator will always return the reverse value of the operand. If the operand value is true, then the Logical NOT operator will return false and vice versa.

C# Logical Operators Example

Following is the example of using the Logical Operators in c# programming language.


        static void Main(string[] args)
        {
            int x = 15, y = 10;
            bool a = true, result;
            // AND operator
            result = (x <= y) && (x > 10);
            Console.WriteLine("AND Operator: " + result);
            // OR operator
            result = (x >= y) || (x < 5);
            Console.WriteLine("OR Operator: " + result);
            //NOT operator
            result = !a;
            Console.WriteLine("NOT Operator: " + result);
            Console.WriteLine("Press Enter Key to Exit..");
            Console.ReadKey();
        }

static void Main(string[] args)

{

int x = 15, y = 10;

bool a = true, result;

// AND operator

result = (x <= y) && (x > 10);

Console.WriteLine("AND Operator: " + result);

// OR operator

result = (x >= y) || (x < 5);

Console.WriteLine("OR Operator: " + result);

//NOT operator

result = !a;

Console.WriteLine("NOT Operator: " + result);

Console.WriteLine("Press Enter Key to Exit..");

Console.ReadKey();

}

Output:

Logical Operators with Examples in C#

C# Logical Operators Example

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C# Logical Operators Example

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