anchor.diff:  
   If you do not want to do the exercise at all, you can also just https://github.com/vaadin/tutorial/[download the final application] and play around with it.
   
  -TIP: In addition to this written tutorial, we have recorded the steps as https://www.youtube.com/playlist?list=PLcRrh9hGNalkIgvImLRO9u3D0YpmEWuqo[a series of videos]. You can just watch all the videos or watch the video of each step before you do the same step yourself.
  +TIP: In addition to this written tutorial, we have recorded the steps as https://www.youtube.com/playlist?list=PLcRrh9hGNalkZx921iMqZ-jXR0C72eIPR[a series of videos]. You can just watch all the videos or watch the video of each step before you do the same step yourself.
   
   [[framework.tutorial.overview.tools]]
   === Installing the Development Tools
  
positive.code: Before getting more into real Vaadin development, let us introduce some domain objects and a "fake backend".
  In a real-world application, you will most likely have something similar, implemented with, for example, JPA and EJB or a Spring-based service.
  
  The following video covers steps 3 and 4 (<<framework.tutorial.grid>>) of this tutorial:
  
  WARNING: This video is built with Vaadin Framework 7. There are some small differences if you use the latest version.
  
  video::0W0frepDKWI[youtube, width="640", height="400"]
  
  Copy the following three classes from github to your project.
  Class names point to the classes hosted in Github.
  
negative.code: thing you want to do is to list your data from your back-end.
  There are several components and ways in Vaadin to do this.
  In this example, we will use the Grid component for tabular presentation of our customers.
  
  The following video shows how to do this step of the tutorial:
  
  video::EBCm-Vf_fUs[youtube, width="640", height="400"]
  
  We start by introducing a [classname]#Grid# to the [classname]#MyUI# class.
  We could of course just introduce the Grid as a variable in the [methodname]#init()# method, but we most likely want to refer to it later.
  