We're finally finished with the main controller, and we can turn our attention to the next big piece, PreferencesController. Our preferences dialog will be, as is usually expected, a modal dialog. It will offer a tabbed interface with one tab for general settings, then a tab for each supported social network. We start that work by adding a new FXML file and controller to our project, and NetBeans has a great wizard for that. Right-click on the desired package, and click on New | Other. From the Categories list, select JavaFX, and then, from the File Types lists, select Empty FXML as shown in the following screenshot:
After clicking on Next, you should see the FXML Name and Location step. This will ...
