How an array append

Hi Kasuni,

You can try this

public static void main(String[] args) throws ParseException {
String jsonString = "{\"a\": \"b\",\"features\": [{\"feature1\": \"value1\"}, {\"feature2\": \"value2\"}]}";
JSONParser parser = new JSONParser();
JSONObject jsonObj = (JSONObject) parser.parse(jsonString);
JSONObject newJSON = new JSONObject();
newJSON.put("feature3", "value3");
appendToList(jsonObj, newJSON);
System.out.println(jsonObj);
}
private static void appendToList(JSONObject jsonObj, JSONObject toBeAppended) {
JSONArray arr = (JSONArray) jsonObj.get("features");
arr.add(toBeAppended);
}