docs: public static void main(String[] args) {
          if (args.length < 2) {
              System.out.println("Usage: java twitter4j.examples.list.ShowUserListMembership [list id] [user id]");
              System.exit(-1);
          }
          try {
              Twitter twitter = new TwitterFactory().getInstance();
              long listId = Long.parseLong(args[0]);
              UserList list = twitter.showUserList(listId);
              long userId = Integer.parseInt(args[1]);
              User user = twitter.showUser(userId);
              try {
                  twitter.showUserListMembership(listId, userId);
                  System.out.println("@" + user.getScreenName() + " is in the list:" + list.getName());
              } catch (TwitterException te) {
                  if (te.getStatusCode() == 404) {
                      System.out.println("@" + user.getScreenName() + " is not in the list:" + list.getName());
                  }
              }
              System.exit(0);
          } catch (TwitterException te) {
              te.printStackTrace();
              System.out.println("Failed to check user membership: " + te.getMessage());
              System.exit(-1);
          }
      }