Java Swing Quiz - MCQ - Multiple Choice Questions

Welcome to our Java Swing quiz! Java Swing is a powerful GUI (Graphical User Interface) toolkit for building desktop applications in Java. 

In this blog post, we present a set of twenty-five multiple-choice questions (MCQs) to test your understanding of Java Swing concepts. Let's challenge your knowledge of Swing components, layout managers, event handling, and more. 

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The answer and explanation of each question have given at the end of this post.

1. What does GUI stand for? 

a) Graphical User Interface 

b) General User Interface 

c) Graphics Utility Interface 

d) Graphical Utility Interface 

2. Which package contains the Java Swing classes? 

a) java.lang 

b) java.io 

c) java.util 

d) javax.swing 

3. Which class is used as the base class for all Swing components? 

a) Component 

b) Container 

c) JPanel 

d) JFrame 

4. Which layout manager is used by default for JFrame? 

a) BorderLayout 

b) FlowLayout 

c) GridLayout 

d) CardLayout 

5. Which class is used to create a button in Java Swing? 

a) JButton 

b) JLabel 

c) JRadioButton 

d) JTextArea 

6. Which event listener interface is used for handling button click events? 

a) ActionListener 

b) ItemListener 

c) MouseListener 

d) KeyListener 

7. What is the purpose of the setVisible() method in JFrame? 

a) To set the size of the frame 

b) To set the title of the frame 

c) To make the frame visible on the screen

d) To close the frame 

8. Which method is used to add components to a container in Java Swing? 

a) add() 

b) setComponent() 

c) insert() 

d) append() 

9. What is the purpose of the setLayout() method in Java Swing? 

a) To set the background color of a component 

b) To set the size of a component 

c) To set the layout manager for a container 

d) To set the font style for a component 

10. Which layout manager is used to arrange components in a grid-like structure? 

a) BorderLayout 

b) FlowLayout 

c) GridLayout 

d) GridBagLayout 

11. What is the purpose of the repaint() method in Java Swing? 

a) To change the background color of a component 

b) To add a new component to a container 

c) To revalidate the layout of a container 

d) To redraw a component on the screen 

12. Which class is used to display text in Java Swing? 

a) JTextField 

b) JTextArea 

c) JLabel 

d) JList 

13. Which event listener interface is used for handling keyboard events? 

a) ActionListener 

b) ItemListener 

c) MouseListener 

d) KeyListener 

14. What is the purpose of the setResizable() method in JFrame? 

a) To set the size of the frame 

b) To set the title of the frame 

c) To make the frame resizable or non-resizable 

d) To close the frame 

15. Which class is used to display images in Java Swing? 

a) JButton 

b) JLabel 

c) JRadioButton 

d) JTextArea 

16. Which method is used to set the text content of a JTextField? 

a) setText() 

b) append() 

c) setLabel() 

d) setContent() 

17. What is the purpose of the setDefaultCloseOperation() method in JFrame? 

a) To set the size of the frame 

b) To set the title of the frame 

c) To specify the default close operation for the frame 

d) To close the frame 

18. Which class is used to display a list of selectable items in Java Swing? 

a) JTextField 

b) JTextArea 

c) JLabel 

d) JList 

19. Which event listener interface is used for handling mouse events? 

a) ActionListener 

b) ItemListener 

c) MouseListener 

d) KeyListener 

20. What is the purpose of the setEnabled() method in Java Swing? 

a) To set the size of a component 

b) To enable or disable user interaction with a component 

c) To set the background color of a component 

d) To set the font style for a component 

21. Which class is used to display a dropdown list of selectable items in Java Swing? 

a) JTextField 

b) JTextArea c

) JLabel 

d) JComboBox 

22. Which event listener interface is used for handling item selection events in a JComboBox? 

a) ActionListener 

b) ItemListener 

c) MouseListener 

d) KeyListener 

23. What is the purpose of the setToolTipText() method in JavaSwing? 

a) To set the size of a component 

b) To set the background color of a component 

c) To specify a tooltip text for a component 

d) To enable or disable user interaction with a component 

24. Which class is used to display tabbed panes in Java Swing? 

a) JTabbedPane 

b) JSlider 

c) JProgressBar 

d) JSpinner 

25. What is the purpose of the setIcon() method in Java Swing? 

a) To set the size of an icon 

b) To set the background color of an icon 

c) To specify an image icon for a component 

d) To enable or disable an icon

Answers and Explanations

Question 1

Answer:

a) Graphical User Interface 

Explanation: 

Graphical User Interface (GUI) stands for creating visual interfaces that allow users to interact with software applications. 

Question 2

Answer:

d) javax.swing 

Explanation: 

The javax.swing package contains the Java Swing classes for creating GUI components.

Question 3

Answer:

a) Component 

Explanation: 

The Component class is the base class for all Swing components. It provides common functionality for managing components.

Question 4

Answer:

a) BorderLayout 

Explanation: 

By default, JFrame uses the BorderLayout layout manager.

Question 5

Answer:

a) JButton 

Explanation: 

The JButton class is used to create a button in Java Swing.

Question 6

Answer:

a) ActionListener

Explanation: 

The ActionListener interface is used for handling button-click events.

Question 7

Answer:

c) To make the frame visible on the screen 

Explanation: 

The setVisible() method is used to make the frame visible on the screen.

Question 8

Answer:

a) add() 

Explanation: 

The add() method is used to add components to a container in Java Swing.

Question 9

Answer:

c) To set the layout manager for a container 

Explanation: 

The setLayout() method is used to set the layout manager for a container.

Question 10

Answer:

c) GridLayout 

Explanation: 

The GridLayout layout manager is used to arrange components in a grid-like structure.

Question 11

Answer:

d) To redraw a component on the screen 

Explanation: 

The repaint() method is used to redraw a component on the screen.

Question 12

Answer:

c) JLabel 

Explanation: 

The JLabel class is used to display images in Java Swing.

Question 13

Answer:

d) KeyListener 

Explanation: 

The KeyListener interface is used for handling keyboard events.

Question 14

Answer:

c) To make the frame resizable or non-resizable 

Explanation: 

The setResizable() method is used to make the frame resizable or non-resizable.

Question 15

Answer:

b) JLabel 

Explanation: 

The JLabel class is used to display images in Java Swing.

Question 16

Answer:

a) setText()

Explanation: 

The setText() method is used to set the text content of a JTextField.

Question 17

Answer:

c) To specify the default close operation for the frame 

Explanation: 

The setDefaultCloseOperation() method is used to specify the default close operation for the frame.

Question 18

Answer:

d) JList 

Explanation: 

The JList class is used to display a list of selectable items in Java Swing.

Question 19

Answer:

c) MouseListener 

Explanation: 

The MouseListener interface is used for handling mouse events.

Question 20

Answer:

b) To enable or disable user interaction with a component 

Explanation: 

The setEnabled() method is used to enable or disable user interaction with a component.

Question 21

Answer:

d) JComboBox 

Explanation: 

The JComboBox class is used to display a dropdown list of selectable items in Java Swing.

Question 22

Answer:

b) ItemListener 

Explanation: 

The ItemListener interface is used for handling item selection events in a JComboBox.

Question 23

Answer:

c) To specify a tooltip text for a component 

Explanation: 

The setToolTipText() method is used to specify a tooltip text for a component.

Question 24

Answer:

a) JTabbedPane 

Explanation: 

The JTabbedPane class is used to display tabbed panes in Java Swing.

Question 25

Answer:

c) To specify an image icon for a component 

Explanation: 

The setIcon() method is used to specify an image icon for a component.

Conclusion

Congratulations on completing our Java Swing quiz! We hope you found it informative and enjoyed testing your knowledge of Java Swing concepts. Swing provides a rich set of components and features for building GUI applications. 

Learn and Master Java Programming: Learn Java Programming with Examples

Check out 100+ quiz questions: 100+ Quiz Questions to Test Your Java, Spring Boot, Microservices, Hibernate, REST API Skills

Keep exploring and practicing Java Swing to enhance your skills in creating interactive and visually appealing desktop applications.