public void useDictionary(String dictionaryFileName) throws IOException {
		try {
	      root.clearList();
	      this.root = new Words();
	      Scanner sc = new Scanner(new File(dictionaryFileName));
	      sc.useDelimiter(", *");
	      while (sc.hasNext()) {
	    	  String tmp = sc.next().trim();
	    	  tmp = tmp.replaceAll("\\s","");
	    	  root.add(tmp);
	      }
	      sc.close();
		} catch (FileNotFoundException e) {
			System.out.println("");
		}

	}