Java style package identifier?

Could someone explain how to add this to a project so you can build a project?

I know absolutely nothing about this and couldn’t find anything explaining it : ( [import]uid: 72845 topic_id: 11840 reply_id: 311840[/import]

you can treat that as a unique key across android market

for more info read

http://blog.javia.org/android-package-name/

or google [import]uid: 12482 topic_id: 11840 reply_id: 43146[/import]