public static void Iterator()
{
// Build a collection of jelly beans
JellyBeanCollection collection = new JellyBeanCollection();
collection[0] = new JellyBean("Cherry");
collection[1] = new JellyBean("Bubble Gum");
collection[2] = new JellyBean("Root Beer");
collection[3] = new JellyBean("French Vanilla");
collection[4] = new JellyBean("Licorice");
collection[5] = new JellyBean("Buttered Popcorn");
collection[6] = new JellyBean("Juicy Pear");
collection[7] = new JellyBean("Cinnamon");
collection[8] = new JellyBean("Coconut");
// Create iterator
JellyBeanIterator iterator = collection.CreateIterator();
Console.WriteLine("Gimme all the jelly beans!");
for (JellyBean item = iterator.First(); !iterator.IsDone; item = iterator.Next())
{
Console.WriteLine(item.Flavor);
}
}
public void Iterator_pattern_test()
{
JellyBeanCollection collection = new JellyBeanCollection();
collection[0] = new JellyBean("Cherry");
collection[1] = new JellyBean("Bubble Gum");
collection[2] = new JellyBean("Root Beer");
collection[3] = new JellyBean("French Vanilla");
collection[4] = new JellyBean("Licorice");
collection[5] = new JellyBean("Buttered Popcorn");
collection[6] = new JellyBean("Juicy Pear");
collection[7] = new JellyBean("Cinnamon");
collection[8] = new JellyBean("Coconut");
//Create Interator
JellyBeanIterator iterator = collection.CreateIterator();
JellyBean firstJellyBean = iterator.First();
Assert.AreEqual("Cherry", firstJellyBean.Flavor);
JellyBean lastJellyBean = iterator.Last();
Assert.AreEqual("Coconut", lastJellyBean.Flavor);
}