Copy Constructor and Assignment Operator

This example shows the Copy Constructor and the Assignment Operator. In the example, I have just relied on the Default Copy Constructor and the Default Assignment Operator. For a complex class, the default may not be a good option and they will have to be explicitly written.

//Program tested on Microsoft Visual Studio 2008 - Zahid Ghadialy
#include<iostream>

using namespace std;

class A {
public:
  int x,y;
};

int main()
{
  A a;
  a.x = 11;
  a.y = 2222;

  A a2(a); //Default Copy constructor called
  //Copies a paramaters to a2
  cout<<"a2 variables are: a2.x = "<<a2.x<<" and a2.y = "<<a2.y<<endl;

  A a3;
  a3 = a; //Default Assignment Operator called
  //Copies a paramaters to a3
  cout<<"a3 variables are: a3.x = "<<a3.x<<" and a3.y = "<<a3.y<<endl;

  return 0; 
}

The output is as follows: