In this book we've written a lot of code, incrementally building a full application called chatrum .

A reference implementation exists for all chapters, both in Java and Scala, and they are available on GitHub at https://github.com/andypetrella/play2-book-chapters.

To use this project, it would be best to fork it. For that, you will need a GitHub account; then, when logged in and on the project page, use the dedicated button named Fork on the upper-right-hand corner of the page.

This forked project will allow you to adapt, fix, or do whatever you want with it (which I really recommend to you!).

If you find some bugs and manage to fix them, I'll be grateful if you create a pull request on GitHub. This way I'll be able to integrate it and create the errata for the book.

The content of this project is quite simple, since it contains one folder for every chapter. In each folder, there are two folders named play-jbook and play-sbook . These folders are regular Play! 2 applications built on Java and Scala respectively.

I hope you'll enjoy using them and also enjoy Play! Framework 2 in general, and you'll soon be creating amazing web applications.