Deck 14: Creating GUI Applications with JavaFX

Question 1

This is a component that can hold other components inside of it.

A) Container
B) Module
C) Node
D) Element

Answer 1

A

Question 2

A(n) ________ is a method that automatically executes when a specific event occurs.

A) flag register
B) action scheduler
C) callback routine
D) event listener

Answer 2

D

Question 3

The ________ is responsible for handling events that occur while the JavaFX application is running.

A) abstract class
B) main application class
C) controller class
D) super class

Answer 3

C

Question 4

This is an action that takes place within a program, such as the clicking of a button.

A) response
B) input
C) event
D) incident

Question 5

This is a markup language that describes the components in a JavaFX scene graph.

A) SGML
B) HTML
C) XML
D) FXML

Question 6

A window in a GUI commonly consists of several ________ that present data to the user and/or allow interaction with the application.

A) modules
B) components
C) elements
D) buttons

Question 7

In JavaFX, this component is commonly used as a GUI's root node.

A) List
B) AnchorPane
C) Button
D) ComboBox

Question 8

This is a special annotation that must precede any nonpublic field declaration or nonpublic method definition that is used by the FXML file.

A) @FXML
B) finalFX
C) fx:id
D) #FXML

Question 9

The Scene Builder ________ provides a list of JavaFX components that you can use in an application.

A) Inspector Panel
B) Menu Bar
C) Content Panel
D) Library Panel

Question 10

Which of the following does not belong in a JavaFX scene graph?

A) trunk node
B) branch node
C) leaf node
D) root node

Question 11

Once you have created a GUI with Scene Builder, and saved it to an FXML file, you need to write a Java class that performs which of the following?

A) loads the FXML file
B) builds the scene graph in memory
C) displays the GUI
D) All of the above

Question 12

To place a component in a GUI, you simply drag it from the Library Panel, and drop it into the

A) Content Panel.
B) Hierarchy Panel.
C) Selection Bar.
D) Inspector Panel.

Question 13

This is a name that identifies a component in the FXML file and will also become a variable name that you can use later in the Java code that you will write to run the application.

A) fx:id
B) fx_id
C) FXID
D) fx.URL

Question 14

Which of the following import statements is necessary to make the connection between the controller class and the application's FXML file?

A) import javafx.lang;
B) import javafx.scene.control;
C) import javafx.fxml;
D) import javafx.fxml.FXML;

Question 15

A ________ is a tree-like, hierarchical data structure that contains nodes.

A) scene graph
B) class hierarchy
C) UML diagram
D) tree graph

Question 16

Oracle provides a free design tool named ________ that you can use to visually create a GUI.

A) EclipseLink
B) JavaFX
C) Scene Builder
D) Oracle ADF Essentials

Question 17

The Application class's ________ method is the main entry point for a JavaFx application.

A) start
B) init
C) addWindow
D) mainFX

Question 18

This variable references the window that the GUI will be displayed in.

A) window
B) stage
C) component
D) frame

Question 19

This is a graphical window or a system of graphical windows presented by an application for interaction with the user.

A) graphical user interface (GUI)
B) human-computer interface (HCI)
C) man-machine interface (MMI)
D) object-oriented user interface (OOUI)

Question 20

This Scene Builder panel allows you to work with a component's properties, layout, and code.

A) Library Panel
B) Hierarchy Panel
C) Inspector Panel
D) Content Panel

Question 21

In the controller class, you can use the CheckBox's ________ method to determine whether the CheckBox is selected or not.

A) getIndex
B) isActive
C) isChecked
D) isSelected

Question 22

A simple ________ application uses a main application class, and a controller class.

A) Java
B) JavaFX
C) AWT
D) Swing

Question 23

Even if a variable will not reference a component in the GUI, it is necessary to precede the declaration by the @FMXL annotation.

Question 24

Although these are often displayed in groups, they are not usually grouped in a toggle group like RadioButtons are.

A) Labels
B) CheckBoxes
C) Buttons
D) TextFields

Question 25

To change the image being displayed in an ImageView component as the application is running, you pass a reference to an Image object as an argument to this method.

A) setImage
B) replaceImage
C) showImage
D) addImage

Question 26

Which of the following is true concerning the sample controller skeleton provided by Scene Builder?

A) It has all of the necessary import statements.
B) It has private field declarations for all of the components that have an fx:id.
C) You just need to change the name of the class, and write the code for the event listener methods.
D) All of the above

Question 27

In the controller class, you can use the RadioButton's ________ method to determine whether the RadioButton is selected or not.

A) isChecked
B) isPushed
C) isSelected
D) getIndex

Question 28

In a scene graph, the root node and branch nodes can have children, but leaf nodes cannot.

Question 29

Like RadioButtons, CheckBoxes may be selected or deselected at run time.

Question 30

________ are useful when you want the user to select one choice from several possible options.

A) RadioButtons
B) CheckBoxes
C) Buttons
D) Labels

Question 31

As an alternative for manually typing the code for the controller class, Scene Builder can provide a sample "skeleton" for the controller class.

Question 32

You can use this component to display images in an application's GUI.

A) Label
B) ImageView
C) AnchorPane
D) ComboBox

Question 33

Because only one RadioButton in a toggle group can be selected at any given time, the buttons are said to be this.

A) static components
B) singularly bound
C) all inclusive
D) mutually exclusive

Question 34

In JavaFX, the components that are in a GUI are organized as a UML diagram.

Question 35

FXML uses tags to organize data, in a manner similar to the way that HTML uses tags to format text in a Web browser.

Question 36

Once you have written and compiled the controller class, you must go back into Scene Builder and register the controller class to the application's GUI.

Question 37

You can use JavaFX to create standalone graphics applications that run on your local computer, applications that run from a remote server, or applications that are embedded in a Web page.

Question 38

This section of the Inspector Panel allows you to register the controller class and event listeners with the GUI.

A) Code
B) Properties
C) Layout
D) Content

Question 39

In addition to accepting input from the keyboard, GUIs typically accept input from a mouse, or a touch screen.

Question 40

You can write a JavaFX GUI application using nothing but Java code.