Question 1

Every JComponent has an instance variable called that enables the object to maintain references to all its registered listeners.

Accepted Answer

A) registeredListenerList 
B) listenerList 
C) registeredList 
D) eventListenerList 
A) registeredListenerList 
B) listenerList 
C) registeredList 
D) eventListenerList

Question 2

A JScrollPane is provided automatically for which of the following?

Accepted Answer

A) JToggleButton. 
B) JRadioButton. 
C) JList. 
D) None of the above. 
A) JToggleButton. 
B) JRadioButton. 
C) JList. 
D) None of the above.

Question 3

Which of the following statements about Swing GUI components is false?

Accepted Answer

A) Swing components are less portable but more flexible than the original Java GUI components from package java.awt. 
B) Most Swing components are written completely in Java. 
C) Swing components allow the user to specify a uniform look-and-feel across all platforms. 
D) Swing components allow the user to change the look-and-feel while the program is running. 
A) Swing components are less portable but more flexible than the original Java GUI components from package java.awt. 
B) Most Swing components are written completely in Java. 
C) Swing components allow the user to specify a uniform look-and-feel across all platforms. 
D) Swing components allow the user to change the look-and-feel while the program is running.

Question 4

Which methods can be used to change the scrollbar policies?

Accepted Answer

A) setHoizontalPolicy,setVerticalPolicy. 
B) setHorizontal,setVertical. 
C) setHPolicy,setVPolicy. 
D) setHorizontalScrollBarPolicy,setVerticalScrollBarPolicy. 
A) setHoizontalPolicy,setVerticalPolicy. 
B) setHorizontal,setVertical. 
C) setHPolicy,setVPolicy. 
D) setHorizontalScrollBarPolicy,setVerticalScrollBarPolicy.

Question 5

Which of the following statements about anonymous inner classes is false?

Accepted Answer

A) They are declared without a name. 
B) They typically appear inside a method declaration. 
C) They are declared with the anonymous keyword. 
D) They can access their top-level class's members. 
A) They are declared without a name. 
B) They typically appear inside a method declaration. 
C) They are declared with the anonymous keyword. 
D) They can access their top-level class's members.

Question 6

By default JScrollPane ________.

Accepted Answer

A) always displays scrollbars 
B) never displays scrollbars 
C) only displays scrollbars if they are needed 
D) None of the above 
A) always displays scrollbars 
B) never displays scrollbars 
C) only displays scrollbars if they are needed 
D) None of the above

Question 7

Provides the basic attributes and behaviors of a window-a title bar at the top of the window,and buttons to minimize,maximize and close the window.

Accepted Answer

A) JLabel. 
B) JFrame. 
C) JSwing. 
D) JWindowControl. 
A) JLabel. 
B) JFrame. 
C) JSwing. 
D) JWindowControl.

Question 8

Class Point represents ________.

Accepted Answer

A) a filled oval 
B) an x-y coordinate pair 
C) an object used to draw 
D) a period in a sentence 
A) a filled oval 
B) an x-y coordinate pair 
C) an object used to draw 
D) a period in a sentence

Question 9

FlowLayout method changes the alignment for the FlowLayout.

Accepted Answer

A) setLayout 
B) modifyAlignment 
C) setAlignment 
D) setAlign 
A) setLayout 
B) modifyAlignment 
C) setAlignment 
D) setAlign

Question 10

A JLabel can be attached to a JFrame using method ________.

Accepted Answer

A) attach 
B) contain 
C) append 
D) add 
A) attach 
B) contain 
C) append 
D) add

Every JComponent has an instance variable called that enables the object to maintain references to all its registered listeners.

A JScrollPane is provided automatically for which of the following?

Which of the following statements about Swing GUI components is false?

Which methods can be used to change the scrollbar policies?

Which of the following statements about anonymous inner classes is false?

By default JScrollPane ________.

Provides the basic attributes and behaviors of a window-a title bar at the top of the window,and buttons to minimize,maximize and close the window.

Class Point represents ________.

FlowLayout method changes the alignment for the FlowLayout.

A JLabel can be attached to a JFrame using method ________.

Introduction to Computers and Java

Introduction to Java Applications

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Graphics and Java 2D

Strings

Files,streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

JavaFX

Filters

Exam 12: Gui Components: Part 1

Every JComponent has an instance variable called that enables the object to maintain references to all its registered listeners.

A JScrollPane is provided automatically for which of the following?

Which of the following statements about Swing GUI components is false?

Which methods can be used to change the scrollbar policies?

Which of the following statements about anonymous inner classes is false?

By default JScrollPane ________.

Provides the basic attributes and behaviors of a window-a title bar at the top of the window,and buttons to minimize,maximize and close the window.

Class Point represents ________.

FlowLayout method changes the alignment for the FlowLayout.

A JLabel can be attached to a JFrame using method ________.

Introduction to Computers and Java

Introduction to Java Applications

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Graphics and Java 2D

Strings

Files,streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

JavaFX

Filters