with Deep Copy

main.cpp

#include <iostream>
using namespace std;
class Person {
 private :
  int x;
  int *ip;

 public:

  Person(int x, int y) {
	this->x = x;
	ip = new int(y);
  }
  void display() {
	cout << "( " << x << " , " << *ip << " )"<<endl;
  }

  Person() {
	this->x = 0;
	ip = NULL;
  }
  void setY(int y){
	*ip = y;
  }

  Person( Person &obj){
	x = obj.x;
	ip = new int(*obj.ip);
	
  }

};

int main() {
  Person p1(2, 3);
  p1.display();

  Person p2(p1 );
  p2.display();

  p1.setY(40);

p1.display();
p2.display();




  return 0;
}