Convert JSONArray to Object? - simplejson

Question

I have the following JSON and I want to create an Contact object from it. How we can do that using
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
</dependency>
Here is the String
{"totalSize":1,"done":true,"records":[{"attributes":{"type":"Contact","url":"/services/data/v40.0/sobjects/Contact/0037F000001rW9rQAE"},"Id":"0037F000001rW9rQAE","Name":"Chris Smith"}]}
I developed below code but how how to used JSONArray to get the details from it ?
JSONParser jsonParser = new JSONParser();
Object obj = jsonParser.parse(value);
JSONObject jsonObject = (JSONObject) obj;
JSONArray jsonArray = (JSONArray) jsonObject.get("records");
System.out.println("~~~~~~~~~~~>>> "+jsonArray);
List<Contact> contacts = new ArrayList<>();
for (int i = 0; i < jsonArray.size(); i++) {
JSONObject rec = (JSONObject) jsonArray.get(i);
Contact c = new Contact();
c.setId(jsonArray.get(j).toString());
contacts.add(jsonArray.get(j).toString());
}

Answer 1

You can solve your issue like this but if you want to manage exceptions you should use the method getString(KEY), instead optString(KEY)
List<Contact> contacts = new ArrayList<>();
for (int i = 0; i < jsonArray.size(); i++) {
JSONObject rec = (JSONObject) jsonArray.get(i);
Contact c = new Contact();
c.setId(rec.optString("Id"));
c.setName(rec.optString("Name"));
c.setAtributes(rec.optJSONObject("attributes"))
contacts.add(rec);
}