Stream operator overloading

Stream operator overloading

Aim:
To write a C++ program to add two values using stream operator overloading.
Algorithm:
Step 1: Declare the class as add.
Step 2: Declare the data members as a, b.
Step 3: Declare the member functions as
friend istream & operator >>(istream &in,add &d)
friend ostream & operator <<(ostream &out,add &d)
Step 4:  In the main, create the object for the add class.
Step 5: Get the input values by overloading “<<” operator.
Step 6: Add the values and display the values using “>>”operator.
Program:
#include<iostream.h>
#include<conio.h>

class add
{
   int a,b;
 public:
       friend istream &operator>>(istream &in,add &d);
       friend ostream &operator<<(ostream &out,add &d);
};

istream &operator>>(istream &in,add &d)
{
  in>>d.a;
in>>d.b;
  return in;
}

ostream &operator<<(ostream &out,add &d)
{
  out<<d.a+d.b;
  return out;
}

void main()
{
  add d;
  clrscr();
  cout<<"ENTER THE VALUES FOR a AND b:";
  cin>>d;
  cout<<"\nTHE SUM IS:";
cout<<d;
  getch();
}

Output:

ENTER THE VALUES FOR a AND b:5 7

THE SUM IS:12