4) Write a C++ program that displays three Point values using Copy Constructor.

 source file name: copycst.CPP

#include<iostream.h>

#include<conio.h>

class Point

{

private:

int x, y;

public:

Point(int x1, int y1) { x = x1; y = y1; }

// Copy constructor

Point(const Point &p1) {x = p1.x; y = p1.y; }

int getX() { return x; }

int getY() { return y; }

};

int main()

{

Point p1(25, 10); // Normal constructor is called here

Point p2 = p1; // Copy constructor is called here

    Point p3(15,20);

clrscr();

// Let us access values assigned by constructors

cout << "\n point 1 values  x = " << p1.getX() << ", y = " << p1.getY();

cout << "\npoint 2 values x = " << p2.getX() << ", y = " << p2.getY();

cout << "\npoint 3 values x = " << p3.getX() << ", y = " << p3.getY();

return 0;

}

output: