URGENT! simple mobile andriod app task

The task is about completing and correcting a little error I have in three of my tasks. I can send you the three task for you to look at immediatly and solve the issues problems "AsyncTaskExample" Task The app do not show the result. Try to fix this problem by using a ByteArrayOutputStream instead of your "data" variable. "ServiceCalculateFaculty" Task The app does not show the result after the calculation. The problem is that I did not use my created ServiceConnection "mConnection". You should implement the two methods "onStart" and "onStop" for starting and stopping the service. "WeatherStation" Task If you press the "CHECK HUMIDITY" button no calculated values will be shown. Try to improve this.