How to get Latitude and Longitude of current location in android mobile?

Here is the First Activity class for getting Current Location Latitude and Longitude.
Here is the my java file class

public class LocationGet extends Activity implements LocationListener{
    private TextView latituteField;
    private TextView longitudeField;
    private LocationManager locationManager;
    private String provider;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        latituteField = (TextView) findViewById(R.id.latitude);
        longitudeField = (TextView) findViewById(R.id.longitude);
        // Get the location manager
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        // Define the criteria how to select the locatioin provider -> use
        // default
        Criteria criteria = new Criteria();
        provider = locationManager.getBestProvider(criteria, false);
        Location location = locationManager.getLastKnownLocation(provider);
        // Initialize the location fields
        if (location != null) {
            System.out.println("Provider " + provider + " has been selected.");
            int lat = (int) (location.getLatitude());
            int lng = (int) (location.getLongitude());
            latituteField.setText(String.valueOf(lat));
            longitudeField.setText(String.valueOf(lng));
        } else {
            latituteField.setText("Provider not available");
            longitudeField.setText("Provider not available");
        }

    }

    @Override
    public void onLocationChanged(Location location) {
        int lat = (int) (location.getLatitude());
        int lng = (int) (location.getLongitude());
        latituteField.setText(String.valueOf(lat));
        longitudeField.setText(String.valueOf(lng));
        }

    @Override
    public void onProviderDisabled(String provider) {
        Toast.makeText(this, "Disenabled provider " + provider,
                Toast.LENGTH_SHORT).show();

       
    }

    @Override
    public void onProviderEnabled(String provider) {
        Toast.makeText(this, "Enabled new provider " + provider,
                Toast.LENGTH_SHORT).show();

       
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        // TODO Auto-generated method stub
       
    }

    @Override
    protected void onResume() {
        locationManager.requestLocationUpdates(provider, 500, 1, this);
        super.onResume();
    }
   
    /* Remove the locationlistener updates when Activity is paused */
    @Override
    protected void onPause() {
        super.onPause();
        locationManager.removeUpdates(this);
    }

}


here is the xml file to display two textview for lat and lng

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/latitude"
    android:id="@+id/latitude"
    /><TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/longitude"
    android:id="@+id/longitude"
    />
</LinearLayout>