static void Main(string[] args) { SingleLinkedList linkedList = new SingleLinkedList(); linkedList.InsertFront(linkedList, 2); // We add one and the head will have data of 2 in it; // the next property will be null as its the end linkedList.InsertFront(linkedList, 3); // if we add another this becomes the head // and next becomes the data node with 2 in it // and its next is null var node = linkedList.FindNode(linkedList, 3); linkedList.InsertAfter(node, 4); var myNode = linkedList.FindNode(linkedList, 2); linkedList.InsertAfter(myNode, 7); linkedList.DeleteNodebyKey(linkedList, 2); linkedList.ReverseLinkedList(linkedList); BinaryTree binaryTree = new BinaryTree(); // this gets added to the root because there are no other nodes // if data is less than it goes on the left. // if its more then it goes on the right.. // so as we are searching - if the value of the data < this node then go left // if value of data > this node then go right // and progress down the tree to find a space for the data // Each pass cuts data in half and improves performance.. binaryTree.Add(1); binaryTree.Add(2); binaryTree.Add(7); binaryTree.Add(3); binaryTree.Add(10); binaryTree.Add(5); binaryTree.Add(8); // what happens if we already have the value binaryTree.Add(1); AvlTree tree = new AvlTree(); tree.Add(5); tree.Add(3); tree.Add(7); tree.Add(2); tree.Delete(7); tree.DisplayTree(); // LIFO so Stack <FootballTeam> stackOfFootballTeams = new Stack <FootballTeam>(); stackOfFootballTeams.Push(new FootballTeam() { Name = "Manchester United", ShirtColor = "Red", Stadium = "Old Trafford" }); stackOfFootballTeams.Push(new FootballTeam() { Name = "Liverpool", ShirtColor = "Red", Stadium = "Anfield" }); var count = stackOfFootballTeams.Count; // so first out will be liverpool var item = stackOfFootballTeams.Pop(); // This is a queue so FIFO Queue <FootballTeam> queueOfFootballTeams = new Queue <FootballTeam>(); queueOfFootballTeams.Enqueue(new FootballTeam() { Name = "Manchester United", ShirtColor = "Red", Stadium = "Old Trafford" }); queueOfFootballTeams.Enqueue(new FootballTeam() { Name = "Liverpool", ShirtColor = "Red", Stadium = "Anfield" }); // This will be man united. var footballTeam = queueOfFootballTeams.Dequeue(); Console.ReadLine(); }