Problem z odczytem wartości

[Czaromirus]

Witam !

Mam problem gdyz nie umiem jeszcze odczytac z tego linku wartosci vaild i czy mogl by mi ktos podać ten kawalek kodu .

 

https://lvlup.pro/api/checksms?id=1&code=TEST&number=70068&desc=dowolnatresc

[rafszy122]

private static String readAll(Reader rd) {
        try{
            StringBuilder sb = new StringBuilder();
            int cp;
            while ((cp = rd.read()) != -1) {
                sb.append((char) cp);
            }
            return sb.toString();
        } catch (IOException e){
            e.printStackTrace();
        }

        return null;

    }

    private static JSONObject readJsonFromUrl(String url) {
        try{
            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();
            }
        } catch (JSONException |  IOException e){
            e.printStackTrace();
        }

        return null;

    }

    public static void main(String[] args){
        JSONObject object = readJsonFromUrl("https://lvlup.pro/api/checksms?id=1&code=TEST&number=70068&desc=dowolnatresc");
        boolean valid = object.getInt("valid") != 0;
    }

Nie pogardze lajkiem