Classes and Objects

Classes are user-defined data types that represent real-world entities. Objects are instances of classes.

class Car {
  public:
    string brand;
    void honk() {
      cout << "Beep!\n";
    }
};

int main() {
  Car myCar;
  myCar.brand = "Toyota";
  myCar.honk();
}

This is the foundation of OOP in C++.