I am trying to make a app which will display my location in app with marker : I am new in android and created a predefined Map project from android studio.
This is my code.. 

      public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;


        // Add a marker in Sydney and move the camera

        LatLng sydney = new LatLng(-34, 151);
        mMap.getMyLocation();
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));



    }
}

I want that instead of sydney my current location to be displayed with that red marker.
Please be bit easy as i am completely new.
Thanks