static void Main(string[] args)
{
// Build a collection
RadioCollection channels = new RadioCollection();
channels.AddChannel(new FMRadio(91.1, "Radio City"));
channels.AddChannel(new FMRadio(92.7, "Big FM"));
channels.AddChannel(new FMRadio(93.5, "Red FM"));
channels.AddChannel(new FMRadio(94.3, "Radio One"));
channels.AddChannel(new FMRadio(98.3, "Radio Mirchi"));
channels.AddChannel(new FMRadio(104.0, "Fever 104"));
// Create iterator
IIterator iterator = channels.CreateIterator();
Console.WriteLine("============ For loop ===========================");
for (FMRadio radio = iterator.First(); !iterator.IsDone; radio = iterator.Next())
{
Console.WriteLine($"FM Radio Name : {radio.Name} & Frequency : {radio.Frequency}");
}
Console.WriteLine("============ While loop ===========================");
iterator = channels.CreateIterator(); // Here We can use Reset() method of Iterator
FMRadio fMChannel = iterator.First();
while (!iterator.IsDone)
{
Console.WriteLine($"FM Radio Name : {fMChannel.Name} & Frequency : {fMChannel.Frequency}");
fMChannel = iterator.Next();
}
Console.ReadKey();
}
public void RemoveChannel(FMRadio channel)
{
radioStationList.Remove(channel);
}
public void AddChannel(FMRadio channel)
{
radioStationList.Add(channel);
}
