Notice that the wizard component automatically adds a Next button at the bottom
right, clicking this button takes us to the next page in the wizard.
As expected, at this point the wizard component generates both a Previous and a
As we navigate to the wizard and reach the last page, when we click on the Submit
button we see the confirmation message generated by the saveCustomer() method
in our CustomerController managed bean. This message is rendered by the
<p:messages> components, which takes care of nicely styling it without us having to
explicitly use any CSS.