public String nextToken() throws NoSuchElementException
public String nextToken(String delim) throws NoSuchElementException
  public String nextToken() throws NoSuchElementException  {    if (pos < len && delim.indexOf(str.charAt(pos)) >= 0)      {			if (retDelims)				return str.substring(pos, ++pos);			while (++pos < len && delim.indexOf(str.charAt(pos)) >= 0);		}    if (pos < len)      {			int start = pos;			while (++pos < len && delim.indexOf(str.charAt(pos)) < 0);			return str.substring(start, pos);		}		throw new NoSuchElementException();	}