Java How To Program, Late Objects, 11th Edition

12.3 JavaFX App Window Structure

A JavaFX app window consists of several parts (Fig. 12.1).

Fig. 12.1 JavaFX app window parts.

Figure 12.1 Full Alternative Text

Controls

Controls are GUI components, such as Labels that display text, TextFields that enable a program to receive user input, Buttons that users click to initiate actions, and more.

Stage

The window in which a JavaFX app’s GUI is displayed is known as the stage and is an instance of class Stage (package javafx.stage).

Scene

The stage contains one active scene that defines the GUI as a scene graph—a tree data structure of an app’s visual elements, such as GUI controls, shapes, images, ...