public void TestMethod1()
        {
            Stack stack = new Stack();
            Node node1 = new Node();
            node1.Age = 21;
            node1.Name = "Stan";

            Node node2 = new Node();
            node2.Age = 23;
            node2.Name = "Cad";

            stack.Push(node1);
            stack.Push(node2);

            stack.PrintStack();

            stack.Pop();
            stack.PrintStack();
        }
 public void Push(Node newNode)
 {
     newNode.Next = Top;
     Top = newNode;
 }
 public Node Pop()
 {
     Node temp = Top;
     Top = Top.Next;
     return temp;
 }