static void Main()
{
// Build a collection
ConcreteCollection collection = new ConcreteCollection();
collection.AddProfessor(new Professor("Dr.J", 310));
collection.AddProfessor(new Professor("Prof. Sue", 301));
collection.AddProfessor(new Professor("Dr. Renne", 611));
collection.AddProfessor(new Professor("Dr. Kevin", 630));
collection.AddProfessor(new Professor("Prof. Brian", 465));
collection.AddProfessor(new Professor("Prof. David", 448));
// Create iterator
Iterator iterator = collection.CreateIterator();
//looping iterator
Console.WriteLine("Iterating over collection:");
for (Professor prof = iterator.First(); !iterator.IsCompleted; prof = iterator.Next())
{
Console.WriteLine($"CourseID : {prof .CourseID} & CourseName : {prof .CourseName}");
}
Console.Read();
}
// Constructor
public Iterator(ConcreteCollection collection)
{
this.collection = collection;
}