Which of the following statement is correct about the program given below?

#include<iostream.h> 
class AptitudeCrack
{
    int x, y; 
    public:
        AptitudeCrack()
        {
            x = 0;
            y = 0; 
        }
        AptitudeCrack(int xx, int yy)
        {
            x = xx;
            y = yy; 
        }
        AptitudeCrack(AptitudeCrack *objB)
        {
            x = objB->x;
            y = objB->y; 
        }
        void Display()
        {
            cout<< x << ' ' << y;
        }
};
int main()
{
    AptitudeCrack objAptitude( new AptitudeCrack(20, 40) );
    objAptitude.Display();
    return 0; 
}