Im trying to scrape a websites to get the lat, lng using Jsoup to place into gmaps but i get a stack trace of

```
FATAL EXCEPTION: main
Process: au.com.industryresponsetraining.map, PID: 18842
 java.lang.NumberFormatException: Invalid double: ""

```

I have read it due to 

> 
> you are parsing onCreate() value without putting any default value so the exception
> 
> 
> 

except on my onCreate() is where my Jsoup is run.
if I add something like

```
double myDouble;

String myString = ((EditText) findViewById(R.id.editText1)).getText().toString();

if (myString != null && !myString.equals("")) {
    myDouble = Double.valueOf(myString);
} else {
    myDouble = 0;
}

```

referenced from [here](https://stackoverflow.com/a/32196616/4986121) my map ends out at sea.

My webpage has a valid lat, lng on it

here is my activity

```
package au.com.industryresponsetraining.map;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;
    String ln = "";
    String lt = "";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
        new Thread(new Runnable() {

            @Override
            public void run() {
                try {

                    //get the Document object from the site. Enter the link of site you want to fetch
                    Document document = Jsoup.connect("http://www.industryresponsetraining.com.au/mdt/lat.html").get();

                    //Get the title of blog using title tag
                    //title = document.select("p").text().toString();
                    lt = document.select("h6").text().toString();
                    ln = document.select("h7").text().toString();

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        double lats = Double.valueOf(lt);
        double lngs = Double.valueOf(ln);
        LatLng marker = new LatLng(lats, lngs);
        mMap.addMarker(new MarkerOptions().position(marker).title("my Marker"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(marker));
        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(marker, 15));
    }
}

```

The actual google map stuff has been referenced from the [developers](https://developers.google.com/maps/documentation/android-api/start#step_4_get_a_google_maps_api_key) page