Problème Variable Android studio

package com.example.meteogpsipbtc;

import ...

public class MainActivity extends AppCompatActivity {
    TextView tempTextView;
    TextView timeTextView;
    TextView bitTextView;
    TextView AddressText;
    private LocationRequest locationRequest;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // get the reference of TextView's
        tempTextView = (TextView) findViewById(R.id.temp);
        timeTextView = (TextView) findViewById(R.id.time);
        bitTextView = (TextView) findViewById(R.id.bitcoin);
        AddressText = findViewById(R.id.addressText);

        locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(5000);
        locationRequest.setFastestInterval(2000);

        Button search = (Button) findViewById(R.id.search);

        // Réagir au click sur le bouton SEARCH :
        search.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                new MeteoTask().execute(); }
        });

    }

    private class MeteoTask extends AsyncTask<String, Void, String[]> {

        public  String callHttpsAPI(String urlString) throws IOException, JSONException {
            HttpsURLConnection urlConnection = null;
            URL url = new URL(urlString);
            urlConnection = (HttpsURLConnection) url.openConnection();
            urlConnection.setRequestMethod("GET");
            urlConnection.setReadTimeout(10000 /* milliseconds */ );
            urlConnection.setConnectTimeout(15000 /* milliseconds */);
            urlConnection.setDoOutput(true);
            urlConnection.connect();

            BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
            StringBuilder sb = new StringBuilder();

            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();

            String jsonString = sb.toString();
            System.out.println("JSON: " + jsonString);

            return jsonString;
        }

        protected void onPreExecute(){
            super.onPreExecute();
        }

        @Override
        protected String[] doInBackground(String... args) {
            String[] result = new String[3];
            String ucd = "https://api.coindesk.com/v1/bpi/currentprice.json";

            try {
                    if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {

                        LocationServices.getFusedLocationProviderClient(MainActivity.this)
                                .requestLocationUpdates(locationRequest, new LocationCallback(){
                                    @Override
                                    public void onLocationResult(@NonNull LocationResult locationResult) {
                                        super.onLocationResult(locationResult);

                                        LocationServices.getFusedLocationProviderClient(MainActivity.this)
                                                .removeLocationUpdates(this);

                                        if (locationResult != null && locationResult.getLocations().size() >0){

                                            int index = locationResult.getLocations().size() - 1;
                                            double la1 = locationResult.getLocations().get(index).getLatitude();
                                            double long1 = locationResult.getLocations().get(index).getLongitude();

                                            AddressText.setText("Latitude: "+ la1 + "\n" + "Longitude: "+ long1);
                                        }
                                    }
                                }, Looper.getMainLooper());

                    }

                //Récupération résultat requete URL  ucd dans le 1er tabeau
                result[1] = this.callHttpsAPI(ucd);

                //Récupération résultat requete URL myip pour l'interger dans URL ip dans le 2eme tabeau
                String myip ="https://api.ipify.org";
                String IP = this.callHttpsAPI(myip);
                String ip = "https://ipinfo.io/"+IP+"/geo";
                result[2] = this.callHttpsAPI(ip);

                //Récupération JSON ipinfo.io avec  @IP dynamique localisation
                JSONObject resReqWeb4 = new JSONObject(result[2]);
                //RECUPERATION du String loc ou il y a longitude et latitude
                String locip2 = resReqWeb4.getString( "loc");
                // Split pour récuperer long et lat séparer + affectation a variable
                String[] coordo = locip2.split(",");
                String latitude = coordo[0];
                String longitude = coordo[1];
                //Affectation des 2 nouvelles varaible latitude et longitude a LURL météo avec la localisation de l'IP
                String meteo = "https://api.open-meteo.com/v1/forecast?latitude="+latitude+"&longitude="+longitude+"&hourly=temperature_2m";
                result[0] = this.callHttpsAPI(meteo);


            } catch (IOException | JSONException e) {
                e.printStackTrace();
                String[] err = new String [1];
                err[0]="Exception: " + e.getMessage();
                return err;
            }
            return result;
        }
        // result c'est le JSON complet
        protected void onPostExecute(String[] result) {

            try {

                //Récupération du JSON @IP
                JSONObject resReqWeb6 = new JSONObject(result[2]);
                //RECUPERATION OBJET
                String mycity = resReqWeb6.getString( "city");


                //Récupération du JSON complet météo
                JSONObject resReqWeb = new JSONObject(result[0]);
                //On convertit le contenu de la case en string
                String string1 = resReqWeb.getJSONObject( "hourly").getJSONArray( "temperature_2m").getString(0);
                String string2 = resReqWeb.getJSONObject( "hourly").getJSONArray( "time").getString(0);
                //Mise a jour du TextView
                tempTextView.setText("Il faisait à "+mycity+": "+string1 +" °C ");
                timeTextView.setText(" le : "+string2);


                //Récupération du JSON bitcoin
                JSONObject resReqWeb2 = new JSONObject(result[1]);
                //Récupération OBJET bpi
                JSONObject bpi = resReqWeb2.getJSONObject("bpi");
                //Récupération de l'objet EUR
                JSONObject eur = bpi.getJSONObject("EUR");
                //Récupération du court du bitcoin
                double biteuro = eur.getDouble("rate_float");
                bitTextView.setText("Cours du BTC : "+ biteuro +" €");

            }

            catch (Exception e) {
                e.printStackTrace();
            }
            //Fin de la méthode onPostExecute

        }

    }
}