Blackberry development sequence

The sequence to development the Blackberry application

1) create a class of the main screen.
1.1) create the constructor
1.2) add components in order.
2) create a class, like TheApp, that contain the main() entry point.
2.1) create the constructor
2.2) create the instance of the main screen and push it into the system screen.
2.3) in the main()
2.3.1) create an instance of TheApp class.
2.3.2) finally, enterEventDispatcher().
Build and run.