#include using namespace std; // operator overloading // to demonstrate how to overload // operator + ; to enable clasa_object + // const integer class Fruit { private: int apple; int orange; public: Fruit (int num_of_apple = 0, int num_of_orange = 0); void info_fruit(); Fruit operator + (Fruit f2); Fruit operator + (int additional); }; int main() { Fruit fruit1(20,5); Fruit fruit2; cout << "Info fruit in object fruit1: " << endl; fruit1.info_fruit(); // output: // apple = 20 // orange = 5 fruit2 = fruit1 + 5; cout << "Info of fruit in object fruit2" << endl; fruit2.info_fruit(); fruit2 = fruit1 + fruit1; cout << "Info of fruit in object fruit2 now become: "<< endl; fruit2.info_fruit(); return 0; } // definion of class Fruit member // functions // constructor of class Fruit takes // 2 integer parameters num_of_apple and // num_of_orange Fruit :: Fruit(int num_of_apple, int num_of_orange) { apple = num_of_apple; orange = num_of_orange; } // member function info_fruit to display // fruit info. void Fruit :: info_fruit() { cout << "Number of apple = " << apple << endl; cout << "Number of orange = " << orange << endl; } Fruit Fruit :: operator + (Fruit f2) { Fruit temp; // local object temporary of type // Fruit temp.apple = apple + f2.apple; temp.orange = orange + f2.orange; return (temp); } Fruit Fruit::operator + (int additional) { Fruit temp; // temporary object temp.apple = apple + additional; temp.orange = orange + additional; return (temp); }

operator + overloaded to enable object1+ object2 and object1 = object1 + const integer