Using Android Samples/Examples in app
===

If i use Android Samples/Examples in app and altered it around. Could i put in into the play store. For example if i take the snake game, put different sprites and features... could i call it my app. In other words  are the Google samples they include with their sdk, copyrighted and not reusable. I hope you understand what im trying to ask. 

BTW **Looked everywhere for this question. Couldn't find anything*