code: public static List<String> childrenText(Element parentElement, String tagname) {
          final Iterable<Element> children = children(parentElement, tagname);
  
          List<String> result = new ArrayList<String>();
  
          for (Element element : children) {
              result.add(elementText(element));
          }
  
          return result;
      }
docs: Gets all descendant elements of the given parentElement with the given namespace and tagname and returns their text child as a list of String.