This video explains how to use the JavaFX Official Alert class from javafx.scene.control.Alert (Which was introduced on 8u40 release). This provides a very rich set of options to create almost any kind of Alert or Dialogs that we want to create. I have explained 6 types of alerts in this video.
1. Simple Alert
2. Alert with Header and ContextText
3. Alert with Expandable Content
4. Conformation Alert
5. Alert with multiple Buttons
6. Text Input Alert
Genuine Coder
http://www.genuinecoder.com/