C++ Boolean

In C++, a Boolean is a data type that represents logical values. It can hold one of two possible values:

A Boolean, bool, can have one of the two values true or false. A Boolean is used to express the results of logical operations.

1. true (typically representing a condition that is correct or valid).
2. false (typically representing a condition that is incorrect or invalid).

The bool type in C++ is used to store these values, and it’s commonly used in decision-making structures like if statements or loops, where the program needs to evaluate conditions as either true.

Example: Use Boolean value true

#include <iostream>
using namespace std;

int main() {
    bool isManager = true; 
    if (isManager) {
        cout << "John is Manager." << endl;
    } else {
        cout << "John is Developer." << endl;
    }

    return 0;
}

Output:

Example: Use Boolean value false

#include <iostream>
using namespace std;

int main() {
    bool isEmployeeActive = false; 
    if (isEmployeeActive) {
        cout << "Employee is active." << endl;
    } else {
        cout << "Employee is not active." << endl;
    }

    return 0;
}

Output:

C++ Boolean – Interview Questions

C++ Boolean – Objective Questions (MCQs)

bool a = true;
bool b = false;
cout << a + b;

bool x = (5 > 10);
cout << x;

Related C++ Boolean Topics