This is JavaFX tutorial about creating a new dialog with Stage. This will be a very short example, and as you can look below, this is how our little example will look in the end. As you can see there is a button, a when user click on that button I will create and open a new dialog, simple like that.
This is just a demonstration example. In that new dialog you can create a lot of cool and useful things if you know how to work with JavaFX 2 layouts.