contoh konstraktor dan destraktor

#include <iostream.h>
#include <conio.h>
class CRectangle
{
int *width, *height;
public:
CRectangle (int,int);
~CRectangle();
int area()
{
return (*width* *height);
}
};
CRectangle::CRectangle (int a, int b)
{
width = new int;
   height = new int;
   *width = a;
   *height = b;
}
CRectangle::~CRectangle()
{
delete width;
   delete height;
}
int main()
{
CRectangle rect (3,4),rectb (5,6);
   cout << "rect area : " << rect.area() << endl;
   cout << "rect area : " << rectb.area() << endl;
   getch();
}

berikut adalah hasilnya: