Page 110 - DCAP404 _Object Oriented Programming

Unit 5: Static Members

cout <<“Entered number is “; Notes
cout << obj.x;
}
void main()
{
one obj1;
two obj2;

obj1.getdata();
obj2.disp(objl);
getche();
}
You should see the output as shown below:
Enter a number 25

Entered number is 25
Though the class first has granted its friendship to the class second, it cannot access the private
data of the class second through its public member function display( ) of the class first.

A non-member function can be friendly with one or more classes. When a function has declared
to have friendship with more than one class, the friend classes should have forward declaration
as it needs to access the private members of both classes.

The general syntax of declaring the same friend function with more than one class is:
class second;
class first
{
private:
//data members;
//member functions;
public: .
//data members;
//member functions;
friend <return_type> <fname>(class first, class second. . ..);
};
class second
{
private:
//data members;
//member functions;
public:
//data members;

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