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; }