Question

A JavaFX Button's event handler receives a(n) ________, which indicates that the Button was clicked.

a. ButtonEvent
b. ObjectEvent
c. ControlEvent
d. ActionEvent

Answer 1

The event handler of a JavaFX Button receives an ActionEvent when the button is clicked. This is part of JavaFX's event-driven programming model.

Step-by-step explanation:

When a JavaFX Button's event handler receives an indication that the Button was clicked, it receives a(n) ActionEvent. This is part of the event-driven programming model where user actions trigger various events that the program can respond to. In JavaFX, the ActionEvent class is used for a variety of GUI components to indicate that an action occurred. For example, when a button is clicked, an ActionEvent is generated and passed to the event handler that was registered for the button's action events.