static void Main(string[] args)
{
BookCollection collection = new BookCollection();
collection[0] = new Book("Harry Potter");
collection[1] = new Book("Lord of the Ring");
collection[2] = new Book("Dac Nhan Tam");
// Create iterator
Iterator iterator = collection.CreateIterator();
// Skip every other item
iterator.Step = 1;
System.Console.WriteLine("Iterating over collection:");
for (Book book = iterator.First(); !iterator.IsDone; book = iterator.Next())
{
System.Console.WriteLine(book.Name);
}
// Wait for user
System.Console.ReadKey();
}