How do I parse a JSONArray in Java with Json.simple?

Question

I am trying to read a JSON file like this:

{
  \"presentationName\" : \"Here some text\",
  \"presentationAutor\" : \"Here some text\",
  \"presentationSlide         


        

Answer 1

For Gson you can paste your json file here : https://www.freecodeformat.com/json2pojo.php Create appropriate pojo classes and then use this code :

Gson gson = new Gson();

    try (Reader reader = new FileReader("pathToYourFile.json")) {

        // Convert JSON File to Java Object
        Root root = gson.fromJson(reader, Root.class);

        // print staff you need
        System.out.println(root.getCommands().get(0).getName());

    } catch (IOException e) {
        e.printStackTrace();
    }

Answer 2

It's working! Thx Russell. I will finish my exercice and try GSON to see the difference.

New code here:

        JSONArray slideContent = (JSONArray) jsonObject.get("presentationSlides");
        Iterator i = slideContent.iterator();

        while (i.hasNext()) {
            JSONObject slide = (JSONObject) i.next();
            String title = (String)slide.get("title");
            System.out.println(title);
        }

Answer 3

You never assign a new value to jsonObject, so inside the loop it still refers to the full data object. I think you want something like:

JSONObject slide = i.next();
String title = (String)slide.get("title");