C++ AND Logical Operator

C++ AND Logical Operator is used to combine two or more logical conditions to form a compound condition. && is the symbol used for C++ AND Operator.

C++ AND Operator takes two boolean values as operands and returns a boolean value.

operand_1 && operand_2

Truth Table

Following is the truth table of C++ AND logical operator.

Operand 1Operand 2Returns
truetruetrue
truefalsefalse
falsetruefalse
falsefalsefalse

C++ AND returns true only if both the operands are true.

C++ AND Example

Following example demonstrates the usage of AND logical operator (&&) with different boolean values.

C++ Program

#include <iostream>
using namespace std;

int main() {
   cout << (true && true) << endl;
   cout << (true && false) << endl;
   cout << (false && true) << endl;
   cout << (false && false) << endl;
}

Output

1
0
0
0

C++ AND combining Multiple Conditions

Following example demonstrates the usage of AND logical operator (&&) in combining boolean conditions and forming a compound condition.

C++ Program

#include <iostream>
using namespace std;

int main() {
   int a = 10;

   if ((a < 100) && (a%2 == 0)) {
      cout << "a is even and less than 100." << endl;
   }
}

Output

a is even and less than 100.

In the above example, a<100 is a condition that checks if a is less than 100 and a%2==0 is another condition that checks if a is even number.

If we would like to check if the condition both the conditions a<100 and a%2==0 is true, we use C++ AND logical operator.

Conclusion

In this C++ Tutorial, we learned what C++ AND Logical Operator is, and how to use it with conditional expressions.