Getting data from JSONObject in JSONArray from JSONObject

Question

{"location":{

"name":"New York","region":"New York","country":"United States of America","lat":40.71,"lon":-74.01,"tz_id":"America/New_York","localtime_epoch":1488124171,"localtime":"2017-02-26 10:49"},

"forecast":{

"forecastday":[{"date":"2017-02-26","date_epoch":1488067200,"day":{"maxtemp_c":5.2,"mintemp_c":1.0,"avgtemp_c":3.5,"maxwind_kph":28.1,

"astro":{"sunrise":"06:34 AM",...

I am programming a Weather App, but when I want to access the, for Example, date then Android Studio says that there is : No value for forecast. This is how I try to get the data:

JSONObject jsonObject = new JSONObject(data);

[...]

JSONObject forecastObject = Utils.getObject("forecast", jsonObject);

JSONArray forecastArray = forecastObject.getJSONArray("forecastday");

JSONObject forecastWeather = forecastArray.getJSONObject(0);

weather.currentCondition.setDate(Utils.getString("date", forecastWeather));

JSONObject dayObject = Utils.getObject("day", forecastWeather);

What am I doing wrong?? Can You help me?

Possible duplicate of [Getting JSONObject from JSONArray](http://stackoverflow.com/questions/7634518/getting-jsonobject-from-jsonarray) — rohitanand, Feb 26 '17 at 16:12

score 0 · Answer 1 · answered Feb 26 '17 at 16:05

0

Are you sure, that you want item at index 0 of this JSONArray? To get JSONArray from JSONObject, you call JSONArray array = object.getJSONArray("key"), then JSONObject newobject = array.getJSONObject(index).

answered Feb 26 '17 at 16:05

Feelfree

80
3
15

I want the first item from "forecastday" isnt it 0 then? – Zocker Bros Feb 26 '17 at 16:17
@ZockerBros Can you upload full json, validated via json validator? – Feelfree Feb 26 '17 at 16:25
I got did it the same way he did : [link](https://www.youtube.com/watch?v=UuGIAomlU1I&t=1h29m12s) – Zocker Bros Feb 26 '17 at 17:35

score 0 · Answer 2 · answered Feb 26 '17 at 16:45

public static Weather getWeather(String data){
    Weather weather = new Weather();
    //creat JSONObject from data
    try {
        JSONObject jsonObject = new JSONObject(data);

        Place place = new Place();


        JSONObject locationObject = Utils.getObject("location", jsonObject);
        place.setLat(Utils.getFloat("lat", locationObject));
        place.setLon(Utils.getFloat("lon", locationObject));
        place.setCity(Utils.getString("name", locationObject));
        place.setCountry(Utils.getString("country", locationObject));
        place.setRegion(Utils.getString("region", locationObject));
        place.setLocaltime(Utils.getString("localtime", locationObject));
        weather.place=place;


        JSONObject currentObject = Utils.getObject("current", jsonObject);
        weather.currentCondition.setLastupdated(Utils.getString("last_updated", currentObject));
        weather.currentCondition.setTemperature(Utils.getString("temp_c", currentObject));
        weather.currentCondition.setWindkph(Utils.getString("wind_kph", currentObject));
        weather.currentCondition.setHumidity(Utils.getFloat("humidity", currentObject));
        weather.currentCondition.setCloud(Utils.getInt("cloud", currentObject));
        weather.currentCondition.setFeelslike(Utils.getDouble("feelslike_c", currentObject));
        weather.wind.setWinddir(Utils.getString("wind_dir", currentObject));
        weather.currentCondition.setPreciption(Utils.getString("precip_mm", currentObject));
        weather.currentCondition.setPressure(Utils.getFloat("pressure_mb", currentObject));
        JSONObject iconObject = Utils.getObject("condition", currentObject);
        weather.currentCondition.setIcon(Utils.getString("icon", iconObject));
        weather.currentCondition.setDescription(Utils.getString("text", iconObject));


        return weather;

    } catch (JSONException e) {
        e.printStackTrace();

        return null;
    }
}

This is the function of how i get my data from the website apixu.com

This is how i connect:

public class WeatherHttpClient {

public String getWeatherData(String place){
    HttpURLConnection connection = null;
    InputStream inputStream = null;

    try {
        connection = (HttpURLConnection) (new URL(Utils.BASE_URL + place)).openConnection();
        connection.setRequestMethod("GET");
        connection.setDoInput(true);
        connection.setDoInput(true);
        connection.connect();

        //Read response
        StringBuffer stringBuffer = new StringBuffer();
        inputStream = connection.getInputStream();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
        String line = null;
        while((line = bufferedReader.readLine())!=null){
            stringBuffer.append(line+ "\r\n");
        }

        inputStream.close();
        connection.disconnect();
        return stringBuffer.toString();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

}

Getting data from JSONObject in JSONArray from JSONObject

2 Answers2