code: public static boolean hasVersionString(String url) {
          boolean inVersion = false;
          for (int i = 0; i < url.length(); i++) {
              char c = url.charAt(i);
              if (c == 'v') {
                  inVersion = true;
              } else if (Character.isDigit(c) && inVersion) {
                  return true;
              } else {
                  inVersion = false;
              }
  
  
          }
  
          return false;
      }
docs: Checks whether the url contains a versioning string (v + number, e.g. v12345)
  @param url The url to check
  @return Whether a version string is contained within the url