cpp-oop-lab-programs/Program 15 - Friend Function.cpp at main · Divyansh11x/cpp-oop-lab-programs · GitHub

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#include <iostream>
using namespace std;

class Number
{
private:
    int num;

public:
    void input()
    {
        cout << "Enter Number: ";
        cin >> num;
    }

    friend void display(Number);
};

void display(Number n)
{
    cout << "Number = " << n.num;
}

int main()
{
    Number obj;

    obj.input();
    display(obj);

    return 0;
}