ImmutableQueue<Integer> iq = new ImmutableQueue<Integer>();
                ImmutableQueue<Integer> cpy = new ImmutableQueue<Integer>();
                cpy=cpy.enqueue(new Integer(1));
                cpy=cpy.enqueue(new Integer(2));
                cpy=cpy.enqueue(new Integer(3));
                cpy=cpy.enqueue(new Integer(4));
                cpy=cpy.enqueue(new Integer(5));
                System.out.println(cpy.size());
                iq=cpy.dequeue();
                System.out.println("Print Queue 1:");
                while(cpy.start!=null)
                {
                        System.out.println(cpy.peek()+"   "+cpy.size());
                        cpy = cpy.dequeue();
                        //cpy.start = cpy.start.next;
                }
                System.out.println("Print Queue 2:");
                while(iq.start!=null)
                {
                        System.out.println(iq.peek()+"   "+iq.size());
                        iq = iq.dequeue();
                        //cpy.start = cpy.start.next;
                }