String to JSON arry of json objetcs

I have a Sring s (JSON array) [{"Phonetype":"Pre","Phone":"918282311"},{"Phonetype":"pre","Phone":"918333222"}]

and now i want to convert this string to JSON array of the JSON objects.

in my code i only can create a JSONrray of objects...

@Override
    public ArrayList<TelephoneNumber> convertToAttribute(String s) {
        ArrayList<TelephoneNumber> list = new ArrayList<TelephoneNumber>();

        JSONParser parser = new JSONParser();
        JSONArray arr = null;
        try {
            arr = (JSONArray) parser.parse(s);
        }
        catch (ParseException e) {
            e.printStackTrace();
        }

        for (JSONObject jo: arr) 
        {   
            System.out.println("obj  " +jo.get("Phone");

        }
        //create a list
        retu list;
    }

how create a JsonArray of JsonObjects?