static void Main(string[] args)
{
// Build a collection
ConcreteCollection collection = new ConcreteCollection();
collection.AddEmployee(new Employee("Dave", 100));
collection.AddEmployee(new Employee("Angie", 101));
collection.AddEmployee(new Employee("Mark", 102));
collection.AddEmployee(new Employee("Chris", 103));
collection.AddEmployee(new Employee("Keith", 104));
collection.AddEmployee(new Employee("Joe", 105));
// Create iterator
Iterator iterator = collection.CreateIterator();
//looping iterator
Console.WriteLine("Iterating over collection:");
for (Employee emp = iterator.First(); !iterator.IsCompleted; emp = iterator.Next())
{
Console.WriteLine($"ID : {emp.ID} & Name : {emp.Name}");
}
Console.Read();
}
// Constructor
public Iterator(ConcreteCollection collection)
{
this.collection = collection;
}