Android/Classes/ComponentName

Examples
http://stackoverflow.com/questions/5123092/why-two-parameters-to-componentname-constructor

intent.setComponent(new ComponentName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity"));

official docs
http://developer.android.com/reference/android/content/ComponentName.html#ComponentName%28java.lang.String,%20java.lang.String%29