Question

A JavaFX app's main class directly inherits from ________.

a. Main
b. Application
c. App
d. Object

Answer 1

In JavaFX, the main class of an application inherits from the Application class, which is the base class for JavaFX apps and itself inherits from the Object class.

Step-by-step explanation:

The main class of a JavaFX application directly inherits from the Application class. In JavaFX, the Application class is a part of the javafx.application package and serves as the fundamental base class for all JavaFX applications. When creating a JavaFX app, your main class needs to extend this Application class. This enables the JavaFX runtime to invoke the start method, which is where the initial UI setup code is written. On the other hand, the Application class itself inherits from the Java Object class, which is the root of the Java class hierarchy.