public void addLast(int item)
	{
		if(head == null)
		{
			head = new Node(item);
			head.next = null;
			size++;
		}
		else
		{
			Node node = head;
			while(node.next != null)
			{
				node = node.next;
			}
			Node newNode = new Node(item);
			node.next = newNode;
			size++;
		}
	}