C++ Programming - OOPS Concepts - Discussion
Discussion Forum : OOPS Concepts - General Questions (Q.No. 51)
51.
Which one of the following options is correct?
Discussion:
9 comments Page 1 of 1.
Rajkumar said:
1 decade ago
Friend function can access protected and public members of both classes and it can also access private members by using object of that class.
class plus
{
private:float x,y;
public:plus(){x=0;y=0;}
plus(int i,int j)
{
x=i;y=j;
}
friend plus operator+(plus ob1,plus ob2);
void display()
{
cout<<"x and y"<<x<<y;
}
plus operator+(plus ob1,plus ob2)
{
plus temp;
temp.x=ob1.x+ob2.x;
temp.y=ob1.y+ob2.y;
return(temp);
}
class plus
{
private:float x,y;
public:plus(){x=0;y=0;}
plus(int i,int j)
{
x=i;y=j;
}
friend plus operator+(plus ob1,plus ob2);
void display()
{
cout<<"x and y"<<x<<y;
}
plus operator+(plus ob1,plus ob2)
{
plus temp;
temp.x=ob1.x+ob2.x;
temp.y=ob1.y+ob2.y;
return(temp);
}
Ghost in oops said:
1 decade ago
Friend function is one which is used to access the private data of a class for which it is defined. It can also used to access protected and public data of a class for which it is defined as a friend.
Renuka said:
9 years ago
Friend function is a non-member function, to access the data within a class as well as out side the class. It can also use private and public member of class.
(1)
MANOJ KUMAR SAHOO said:
1 decade ago
Friend function can access all private, protected and public data members of a class. So option D is right.
Ishu said:
1 decade ago
Friend function can only access the private data members of a class. Is this correct?
Hatos said:
8 years ago
Why do we need "friend"?
If a public function can be accessed from the outside?
If a public function can be accessed from the outside?
Akshit mittal said:
7 years ago
According to me, friend function can access private data of the class.
Nilofer said:
1 decade ago
Friend function can access private members of class.
Prisci said:
1 decade ago
What is friend function?
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