private static void PerformLinkedListOps()
{
var linkedList = new LinkedLists <int>();
linkedList.AddFirst(1);
linkedList.AddFirst(0);
linkedList.AddLast(-1);
linkedList.AddLast(4);
linkedList.Print();
Console.WriteLine(linkedList.getKthFromTheEnd(2));
Console.WriteLine("Reverse");
linkedList.Reverse();
linkedList.Print();
linkedList.DeleteFirst();
linkedList.DeleteLast();
Console.WriteLine(linkedList.Contains(1));
Console.WriteLine(linkedList.Contains(21));
Console.WriteLine(linkedList.IndexOf(1));
Console.WriteLine(linkedList.IndexOf(21));
Console.WriteLine(linkedList.ToArray());
linkedList.Print();
Console.ReadLine();
}