C++ Program Using Friend Function

Friend function is used to access private, public and protected data’s of a class from outside of the class. In common the function that is not a member of the class cannot access the data’s of a class.

This program can access the private data of a class by non-member function through friend where the friend function is declared in the location of public category.

#include<iostream.h>

#include<conio.h>

Class sample

{

Private:

Int x;

Public:

Void getdata (0;

Friend void display (class sample);

};

Void sample:: getdata ()

{

Cout<<”\n Enter a value of the x”;

Cin>>x;

}

Void display (class sample abc)

{

Cout<<”\n Entered number is”<<abc.x;

}

Void main ()

{

Sample obj;

Obj. getdata ();

Cout<<”\n accessing the private data by non member function”;

Display (obj);

getch ();

}

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