(Android) How to change the screen orientation throw code

android.view.IWindowManager windowService = android.view.IWindowManager.Stub.asInterface(
android.os.ServiceManager.getService("window"));

try
{
  if (windowService.getOrientation() == 0)    //Orientation vertical
  {
      windowService.setOrientation(1);  //Orientation horizontal
      Log.i("info", "orientation 1 "+windowService.getOrientation());
  }
  else
  {
      Log.i("info", "orientation 0 "+windowService.getOrientation());
  }                    
}
catch (DeadObjectException e)
{
 e.printStackTrace();
}