code: public static void main(String[] args) {
  
      try {
        final CrawlToFile crawl = new CrawlToFile(args);
        crawl.crawl();
  
      } catch (ParseException e) {
        System.err.print(e.getMessage());
      } catch (IllegalArgumentException e) {
        System.err.println(e.getMessage());
      }
  
    }
docs: Run.
  
  @param args the args