public class LinkedQueue
{
        private class Node
        {
                public object Data;
                public Node Link;
        }
  
        private Node front;
        private Node rear;
  
        public LinkedQueue()
        {
        }
  
        public bool IsEmpty
        {
                get
                {
                        return front == null;
                }
        }
  
  
        public bool IsFull
        {
                get
                {
                        Node p;
  
                        try
                        {
                                p = new Node();
                                return false;
                        }
                        catch
                        {
                                return true;
                        }
                }
        }