static void Main(string[] args)
{
var stations = new StationList();
var station1 = new RadioStation(89);
stations.Add(station1);
var station2 = new RadioStation(101);
stations.Add(station2);
var station3 = new RadioStation(102);
stations.Add(station3);
foreach (var x in stations)
{
Console.Write(x.GetFrequecy());
}
var q = stations.Where(x => x.GetFrequecy() == 89).FirstOrDefault();
Console.WriteLine(q.GetFrequecy());
Console.ReadLine();
}