* @param notes notes to be added about the contact.
	 * @throws NullPointerException if the name or the notes are null
	 */
	public void addNewContact(String name, String notes) throws NullPointerException
	{
		if(name == null)
		{
			throw new NullPointerException("name should not be null");
		}

		if(notes == null)
		{
			throw new NullPointerException("notes should not be null");
		}
		
		Contact contact = new ContactImpl(name);
		contact.addNotes(notes);
		contactList.add(contact);
	}