#include<iostream.h>
#include<conio.h>
class Sample
{
int a,b;
public:
void Setvalue()
{
a=25;
b=50;
}
friend float mean(Sample S)
};
float
mean(Sample S)
{
return float(S.a+S.b)/2.0;
}
int main()
{
clrscr();
Sample X;
X.Setvalue();
cout<<"mean
value="<<mean(X)<<"\n";
getch();
return 0;
}
Output
