How to edit, modify nested JSONObject

Question

Could you help me with this issue please. for example I have JSONEObject

{
\"glossary\": {
    \"title\": \"example glossary\",
    \"GlossDiv\": {
        \"ti         


        

Answer 1

Update/ edit/modify nested JSON Object and converting String to JSON by using org.json.simple.JSONObject recursive call

JSON Input file

{
  "Response": {
    "AccountId": "12345",
    "CompanyCode": 1,
    "CustomerName": "Joseph X. Schmoe",
    "EmailAddressList": {
      "Response.EmailAddressDTO": {
        "AlertOptionList": null,
        "ContactMethodSeqNum": 2,
        "EmailAddress": null
      }
    },
    "MailingAddress": {
      "NonStandard": null,
      "Standard": {
        "Address": "Example",
        "DisplayAddressText": null
      }
    },
    "LastBill": null,
    "LastPayment": null
  }
}

Code for the converting String to JSON Object and Updating the Nested JSON object value against the specific Key Example: "Address": "Addressxxxxxx",

public static void main(String[] args) throws IOException {

        FileInputStream inFile = new FileInputStream("File_Location");
        byte[] str = new byte[inFile.available()];
        inFile.read(str);
        String string = new String(str);
        JSONObject json = JSONEdit.createJSONObject(string);
        System.out.println(JSONEdit.replacekeyInJSONObject(json,"Address","Addressxxxxxx"));
    }

    private static JSONObject replacekeyInJSONObject(JSONObject jsonObject, String jsonKey,
            String jsonValue) {

        for (Object key : jsonObject.keySet()) {
            if (key.equals(jsonKey) && ((jsonObject.get(key) instanceof String)||(jsonObject.get(key) instanceof Number)||jsonObject.get(key) ==null)) {
                jsonObject.put(key, jsonValue);
                return jsonObject;
            } else if (jsonObject.get(key) instanceof JSONObject) {
                JSONObject modifiedJsonobject = (JSONObject) jsonObject.get(key);
                if (modifiedJsonobject != null) {
                    replacekeyInJSONObject(modifiedJsonobject, jsonKey, jsonValue);
                }
            }

        }
        return jsonObject;
    }

    private static JSONObject createJSONObject(String jsonString){
        JSONObject  jsonObject=new JSONObject();
        JSONParser jsonParser=new  JSONParser();
        if ((jsonString != null) && !(jsonString.isEmpty())) {
            try {
                jsonObject=(JSONObject) jsonParser.parse(jsonString);
            } catch (org.json.simple.parser.ParseException e) {
                e.printStackTrace();
            }
        }
        return jsonObject;
    }

JSON Output:

{
  "Response": {
    "AccountId": "12345",
    "CompanyCode": 1,
    "CustomerName": "Joseph X. Schmoe",
    "EmailAddressList": {
      "Response.EmailAddressDTO": {
        "AlertOptionList": null,
        "ContactMethodSeqNum": 2,
        "EmailAddress": null
      }
    },
    "MailingAddress": {
      "NonStandard": null,
      "Standard": {
        "Address": "Addressxxxxxx",
        "DisplayAddressText": null
      }
    },
    "LastBill": null,
    "LastPayment": null
  }
}