Answer to Question #261719 in C++ for Rohit Swain

Question

1)Write a programme in c++ to Overload << operator using friend function.

2)Write a programme in c++ to Overload >> operator using friend function.

Answer 1

#include <iostream>
 
class Point
{
private:
    double m_x{};
    double m_y{};
    double m_z{};
 
public:
    Point(double x=0.0, double y=0.0, double z=0.0)
      : m_x{x}, m_y{y}, m_z{z}
    {
    }
 
    friend std::ostream& operator<< (std::ostream &out, const Point &point);
    friend std::istream& operator>> (std::istream &in, Point &point);
};
 
std::ostream& operator<< (std::ostream &out, const Point &point)
{
    out << "Point(" << point.m_x << ", " << point.m_y << ", " << point.m_z << ')';
 
    return out;
}
 
std::istream& operator>> (std::istream &in, Point &point)
{
    in >> point.m_x;
    in >> point.m_y;
    in >> point.m_z;
 
    return in;
}