Final answer:
The stage method show displays the Stage window. It is used to make the window visible in JavaFX, allowing the GUI to be seen by the user.
Step-by-step explanation:
The stage method show displays the Stage window. When working with graphical user interfaces in JavaFX, the Stage is the top-level JavaFX container that represents the entire window. The show method is called to make the window visible to the user. Once the stage is shown, users can see the application's user interface, which includes the title bar, scene graph, and the root node content if it has been set up prior to calling show. However, the specific function of the show method is to visibly open the window, referred to as the Stage, on the screen.