Android location GPS

    public void getCurrentLocation() {
        LocationManager locationManager;
        String context = Context.LOCATION_SERVICE;
        locationManager = (LocationManager) getSystemService(context);
        Criteria crta = new Criteria();
        crta.setAccuracy(Criteria.ACCURACY_FINE);
        crta.setAltitudeRequired(false);
        crta.setBearingRequired(false);
        crta.setCostAllowed(true);
        crta.setPowerRequirement(Criteria.POWER_LOW);
        String provider = locationManager.getBestProvider(crta, true);

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
         Log.d("Hello", String.valueOf(location.getLongitude()));
        locationManager.requestLocationUpdates(provider, 1000, 0,
                new LocationListener() {
                    @Override
                    public void onStatusChanged(String provider, int status,
                                                Bundle extras) {
                    }

                    @Override
                    public void onProviderEnabled(String provider) {
                    }

                    @Override
                    public void onProviderDisabled(String provider) {
                    }

                    @Override
                    public void onLocationChanged(Location location) {
                        if (location != null) {
                            double lat = location.getLatitude();
                            double lng = location.getLongitude();
                            if (lat != 0.0 && lng != 0.0) {
                                System.out.println("WE GOT THE LOCATION");
                                System.out.println(lat);
                                System.out.println(lng);
                                Log.d("Hello" , String.valueOf(lat));
                            }
                        }

                    }

                });
    }