How can logical operations be performed using boolean variables in C++?

In C++, logical operations can be performed using boolean variables with the following logical operators:

1. Logical AND (&&): Returns true if both operands are true.

   bool a = true;
   bool b = false;
   bool result = a && b; // result will be false

2. Logical OR (||): Returns true if at least one of the operands is true.

   bool a = true;
   bool b = false;
   bool result = a || b; // result will be true

3. Logical NOT (!): Returns true if the operand is false, and vice versa.

   bool a = true;
   bool result = !a; // result will be false

Example Code:

#include <iostream>

int main() {
    bool isStudent = true;
    bool hasPassedExam = false;

    // Logical AND
    bool canEnroll = isStudent && hasPassedExam;
    std::cout << "Can Enroll: " << std::boolalpha << canEnroll << std::endl; // false

    // Logical OR
    bool hasScholarship = true;
    bool canEnrollWithScholarship = isStudent || hasScholarship;
    std::cout << "Can Enroll with Scholarship: " << canEnrollWithScholarship << std::endl; // true

    // Logical NOT
    bool isUnemployed = !hasPassedExam;
    std::cout << "Is Unemployed: " << isUnemployed << std::endl; // true

    return 0;
}

Output:

Can Enroll: false
Can Enroll with Scholarship: true
Is Unemployed: true

Summary:

Logical operations using boolean variables in C++ allow you to combine conditions and manipulate boolean values effectively. The logical operators &&, ||, and ! are essential for decision-making and control flow in your programs. If you have further questions or need clarification, feel free to ask!