int main()
{
ConcreteAggregate *a = new ConcreteAggregate();
a->addItem(5);
a->addItem(4);
a->addItem(3);
a->addItem(2);
a->addItem(1);
Iterator *i = a->createIterator();
while (!i->isDone())
{
cout << i->next() << endl;
}
return 0;
}
