Question 1

Which package does the EventHandler interface belong to?
A) javafx.swing
B) javafx.awt
C) javafx.awt.event
D) javafx.event

Accepted Answer

The EventHandler interface is part of the javafx.event package in JavaFX.

Question 2

In JavaFX, which package does the ActionEvent class belong to?
A) javafx.swing
B) javafx.awt
C) javafx.awt.event
D) javafx.event

Accepted Answer

The ActionEvent class in JavaFX belongs to the javafx.event package.

Question 3

In JavaFX, clicking on a button generates a(n):
A) ActionEvent.
B) CommandEvent.
C) EnterEvent.

Accepted Answer

Clicking on a button in JavaFX generates an ActionEvent, which is used to handle actions like button clicks.

Question 4

Selecting a radio button generates a(n):
A) ActionEvent.
B) ItemEvent.
C) RadioButtonEvent.
D) RadioEvent.

Accepted Answer

Selecting a radio button generates an ActionEvent because it is a type of button component.

Question 5

Selecting a checkbox generates a(n):
A) ActionEvent.
B) ItemEvent.
C) CheckboxEvent.
D) CheckEvent.

Accepted Answer

Selecting a checkbox generates an ActionEvent.

Question 6

When writing a class handling the selection of a slider, what interface should be implemented?
A) ActionListener
B) CheckListener
C) SliderListener
D) ChangeListener

Accepted Answer

The ChangeListener interface is used to handle changes in the state of a component, such as a slider, in Java.

Question 7

How many areas inside a window does a BorderPane control?
A) 1
B) 2
C) 3
D) 4
E) 5

Accepted Answer

A BorderPane control in JavaFX has five areas: top, bottom, left, right, and center.

Question 8

The __________ class, part of the javafx.scne.media package, enables us to play short sounds.
A) Sound
B) AudioClip
C) Media
D) Music

Accepted Answer

The AudioClip class, part of the javafx.scne.media package, enables us to play short sounds.

Question 9

JavaFx supports __________, an animation technique that gives the illusion of a property varying "between" two states by creating and displaying a series of intermediate frames over time.
A) tweening
B) animating
C) in-between
D) illusioning

Accepted Answer

Tweening is the correct term for the animation technique where intermediate frames are created to transition smoothly between two states.

Question 10

When coding a GUI, it is possible to do it either using an FXML file or programmatically.

Accepted Answer

FXML is an XML-based language used to define the user interface in JavaFX, while the same interface can also be created programmatically using Java code.

Question 11

Using a JComboBox, it is possible to restrict the number of visible items in that combo box list.

Accepted Answer

JComboBox has a method called setMaximumRowCount(int) that allows you to specify the maximum number of items visible when the drop-down list is displayed.

Question 12

If a class implements a listener, it cannot listen to events the class generates.

Accepted Answer

A class that implements a listener can listen to events it generates, as it can register itself as a listener for its own events.

Question 13

A PieChart or a BarChart can be bound to an ObservableList; if the data inside the ObservableList change, we need to call a method of either PieChart or BarChart in order to redraw the chart.

Accepted Answer

PieChart and BarChart in JavaFX automatically update when the ObservableList they are bound to changes, without needing to call a method to redraw the chart.

Question 14

The __________ method enables us to identify which component fired an event.

Accepted Answer

The answer of The __________ method enables us to identify...

Question 15

The view in a GUI application can be made in an FXML file.

Accepted Answer

FXML is an XML-based language used to define the user interface in JavaFX applications, allowing developers to separate the view from the application logic.

Question 16

The top-level structure in a JavaFX application is the stage, which corresponds to a window. A stage can have one or more nodes, which are top level containers for scenes that make up the window contents.

Accepted Answer

In JavaFX, the top-level structure is the Stage, which corresponds to a window. However, a Stage can have one or more Scenes, not nodes. Nodes are elements within a Scene.

Question 17

The following organization, in terms of which class inherits from which class, is correct: The Control class inherits from the Region class, which inherits from Parent class, which inherits from Node class, which inherits directly from Object.

Accepted Answer

The given organization is correct because it follows the inheritance hierarchy where each class inherits from its parent class, ultimately inheriting from the Object class.

Question 18

A radio button is a component that would allow users to select male or female.

Accepted Answer

Radio buttons are used in forms to allow users to select one option from a predefined set, such as gender options like male or female.

Question 19

A text box is a component that would allow users to select as many preferred features as they like from a list of options.

Accepted Answer

A text box is typically used for inputting text, not for selecting multiple options from a list. A checkbox or multi-select list would be used for selecting multiple options.

Question 20

GUI programming uses a(n) _____________ model of programming.
A) event-driven
B) float-driven
C) procedural
D) private initiated

Accepted Answer

GUI programming uses an event-driven model where the flow of the program is determined by events such as user actions (clicks, key presses) or messages from other programs.

Quiz 12: Graphical User Interfaces Using Java FX

Which package does the EventHandler interface belong to?

In JavaFX, which package does the ActionEvent class belong to?

In JavaFX, clicking on a button generates a(n) :

Selecting a radio button generates a(n) :

Selecting a checkbox generates a(n) :

When writing a class handling the selection of a slider, what interface should be implemented?

How many areas inside a window does a BorderPane control?

The __________ class, part of the javafx.scne.media package, enables us to play short sounds.

JavaFx supports __________, an animation technique that gives the illusion of a property varying "between" two states by creating and displaying a series of intermediate frames over time.