static void Main(string[] args) {
Garage carLot = new Garage();
foreach (Car c in carLot) {
Console.WriteLine("{0} is going {1} MPH", c.PetName, c.CurrentSpeed);
}
Console.WriteLine();
Console.WriteLine("=> Using IEnumerator");
IEnumerator i = carLot.GetEnumerator();
i.MoveNext();
Car myCar = (Car)i.Current;
Console.WriteLine("{0} is going {1} MPH", myCar.PetName, myCar.CurrentSpeed);
Console.WriteLine();
Console.WriteLine("=> Using named iterator");
foreach (Car c in carLot.GetTheCars(true)) {
Console.WriteLine("{0} is going {1} MPH", c.PetName, c.CurrentSpeed);
}
Console.ReadLine();
}
static void Main(string[] args)
{
Garage carLot = new Garage();
IEnumerator i = carLot.GetEnumerator();
i.MoveNext();
Car car = (Car)i.Current;
//foreach (Car c in carLot)
//{
Console.WriteLine("{0} is going {1} MPH", car.PetName, car.CurrentSpeed);
//}
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("***** Fun with the Yield Keyword *****\n");
Garage carLot = new Garage();
//No exception at this point without local function
//IEnumerator carEnumerator = carLot.GetEnumerator();
//try
//{
// //Error at this time
// carEnumerator.MoveNext();
//}
//catch (Exception e)
//{
// Console.WriteLine($"Exception occurred on MoveNext");
//}
try
{
//Error at this time
var carEnumerator = carLot.GetEnumerator();
}
catch (Exception e)
{
Console.WriteLine($"Exception occurred on GetEnumerator");
}
//Get items using GetEnumerator().
foreach (Car c in carLot)
{
Console.WriteLine("{0} is going {1} MPH",
c.PetName, c.CurrentSpeed);
}
Console.WriteLine();
//Get items(in reverse!) using named iterator.
foreach (Car c in carLot.GetTheCars(true))
{
Console.WriteLine("{0} is going {1} MPH",
c.PetName, c.CurrentSpeed);
}
Console.ReadLine();
}