Question

I am trying to read results of a JSON request into java, yet
The partial output of my JSON request looks like this :

"route_summary": {
        "total_distance": 740,
        "total_time": 86,
        "start_point": "Marienstraße",
        "end_point": "Feldbergstraße"
    }

I would like to use the standard json library to extract the values in total_distance.
However I only seem to be able to get the ‘route_summary’ by doing this :

JSONObject json = null;
json = readJsonFromUrl(request);
json.get("route_summary");

Where

public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
        InputStream is = new URL(url).openStream();
        try {
            BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
            String jsonText = readAll(rd);
            JSONObject json = new JSONObject(jsonText);
            return json;
        } finally {
            is.close();
        }
    }

What I want is get ‘into’ route_summary, any clue / tip would be great !

Answer 1

You need to get route_summary, as you already did, and from that object you need to get the total_distance. This will give you back the route_summary.total_distance.

Code sample:

    JSONObject object = new JSONObject(s);
    int totalDistance = object.getJSONObject("route_summary").getInt("total_distance");