how do I find out a JSON Object return JSON Array or string in android

Question

I have a json like the following. how do I find out a JSON Object return JSON Array or string in android.

{
    "green_spots": [
    ......
    ],
    "yellow_spots": "No yellow spot available",
    "red_spots": "No red spot available"
}

The JSON objects retrurn Array when values is present else return a String like "No green/red/yellow spot available". I done the with following way. but is there any other way to do? because alert string is changed the If will not work.

JSONObject obj = new JSONObject(response);
String green = obj.getString("green_spots");

// Green spots
if ("No green spot available".equalsIgnoreCase(green)) {
    Log.v("search by hour", "No green spot available");
} else {
    JSONArray greenArray = obj.getJSONArray("green_spots");
            ....
      }

Answer 1

    Object object = jsonObject.get("key");
    if (object instanceof JSONObject) {
    // It is json object
    } else if (object instanceof JSONArray) {
    // It is Json Array
    } else {
    // It is a String
    }