Android explicit intent with target component

Question

Is it possible to fire explicit intent but not for an activity from my project but for activity in some other application.

I am sure of this code and I know it is ru

Answer 1

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("np.birthday.com.order", "np.birthday.com.order.MainActivity");// intent.setClassName("Package NAme of another application", "np.birthday.com.order.MainActivity");
startActivity(intent);