public Hashtable()
 {
     //Creates an array of ten empty binary trees
     for (int i = 0; i < 10; i++)
     {
         myTree[i] = new binarytree();
     }
 }
        static void Main(string[] args)
        {
            binarytree mybtree = new binarytree();

            binarytreeNode head = mybtree.AddNode(4);
        }