Notes

#include <iostream>

class MyClass {
private:
int num;

public:
// Constructor with a single parameter
MyClass(int n) {
num = n;
}

// Friend function to add two MyClass objects
friend int add(const MyClass& obj1, const MyClass& obj2);
};

// Friend function definition
int add(const MyClass& obj1, const MyClass& obj2) {
// Access the private members of MyClass objects and perform the addition
return obj1.num + obj2.num;
}

int main() {
// Create two MyClass objects
MyClass obj1(5);
MyClass obj2(10);

// Use the friend function to add the private members
int sum = add(obj1, obj2);

// Display the result
std::cout << "Sum: " << sum << std::endl;

return 0;
}


#include <iostream>

class Spring {
private:
int month;
int year;

public:
// Parameterized constructor
Spring(int m, int y) {
month = m;
year = y;
}

// Member function to display date
void show_date() {
std::cout << "Date: " << month << "/" << year << std::endl;
}

// Destructor
~Spring() {
std::cout << "Destructor called for " << month << "/" << year << std::endl;
}
};

int main() {
// Create two objects of the Spring class using the parameterized constructor
Spring obj1(3, 2023);
Spring obj2(4, 2023);

// Display the dates using the show_date() function
obj1.show_date();
obj2.show_date();

return 0;
}