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Java Swing Multiple-Choice Questions (MCQs)

Swing is a GUI widget toolkit for Java. It is part of Oracle's Java Foundation Classes – an API for providing a graphical user interface for Java programs.

Java Swing MCQs: This section contains multiple-choice questions and answers on the various topics of Java Swing. Practice these MCQs to test and enhance your skills on Java Swing.

List of Java Swing MCQs

1. Which of the following architecture does the Swing framework use?

  1. MVC
  2. MVP
  3. Layered architecture
  4. Master-Slave architecture

Answer: A) MVC

Explanation:

Swing framework uses MVC architecture.

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2. Which language is used in the swing framework?

  1. JavaScript
  2. Java
  3. React
  4. Python

Answer: B) Java

Explanation:

The swing framework is written in the Java programming language.

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3. A ____ is the abstract foundation class for SWING's non-menu user interface controls?

  1. Container
  2. Jcomponent
  3. Component

Answer: C) Component

Explanation:

A Component is the abstract foundation class for SWING's non-menu user interface controls.

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4. A ____ is the basic class for all SWING UI components?

  1. Container
  2. Jcomponent
  3. Component

Answer: B) Jcomponent

Explanation:

A JComponent is a basic class for all SWING UI components.

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5. A ____ is a one-line input field that allows the user to choose a number or an object value from an ordered sequence?

  1. JTextarea
  2. Jtextfield
  3. Jspinner
  4. Jslider

Answer: C) Jspinner

Explanation:

A JSpinner is a one-line input field that allows the user to choose a number or an object value from an ordered sequence.

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6. A ____ control is a dialogue window that allows the user to pick a file?

  1. JChoosFile
  2. JFilefield
  3. JFile
  4. JFileChooser

Answer: D) JFileChooser

Explanation:

A JFileChooser control is a dialogue window that allows the user to pick a file.

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7. An ____ is a change in the state of an item?

  1. Spinner
  2. Event
  3. Occurrence
  4. Activity

Answer: B) Event

Explanation:

An event is a change in the state of an item.

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8. How many types of events are there?

  1. 5
  2. 3
  3. 2
  4. 4

Answer: C) 2

Explanation:

There are two types of events: foreground events and background events.

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9. Which of the following type of events requires direct interaction with the user?

  1. Foreground events
  2. Background events

Answer: A) Foreground events

Explanation:

Foreground events require direct interaction with the user.

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10. Which of the following type of events requires direct interaction with the end-user?

  1. Foreground events
  2. Background events

Answer: B) Background events

Explanation:

Background events require direct interaction with the end-user.

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11. To manage events, Java employs the ____?

  1. Custom-based Event Model
  2. Retired Event Model
  3. Delegation Event Model

Answer: C) Delegation Event Model

Explanation:

To manage events, Java employs the Delegation Event Model.

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12. Which of the following function is used to generate the application's top-level window?

  1. JPanel
  2. JFrame
  3. JCombo

Answer: B) JFrame

Explanation:

JFrame is used to generate the application's top-level window.

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13. ____ is a container for other components and is used to build bespoke panels for organizing and arranging components?

  1. JPanel
  2. JFrame
  3. JCombo
  4. JBox

Answer: A) JPanel

Explanation:

JPanel is a container for other components and is used to build bespoke panels for organizing and arranging components.

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14. Which of the following component gives a drop-down list of options from which to choose?

  1. JPanel
  2. JButton
  3. JComboBox
  4. JBox

Answer: C) JComboBox

Explanation:

JComboBox component gives a drop-down list of options from which to choose.

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15. ____ are classes that act as a connection point between event listeners and event sources?

  1. Event adapters
  2. Events Handler
  3. Event listener
  4. Jevent

Answer: A) Event adapters

Explanation:

Event adapters are classes that act as a connection point between event listeners and event sources.

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16. The ____ class serves as the foundation for all Swing components.

  1. JButton
  2. JComponent
  3. JTextField

Answer: B) JComponent

Explanation:

The JComponent class serves as the foundation for all Swing components.

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17. In Swing, the ____ is used to render visuals and listen for events?

  1. Event adapters
  2. Events Handler
  3. Event listener
  4. Event-Driven Thread

Answer: D) Event-Driven Thread

Explanation:

In Swing, the Event-Driven Thread is used to render visuals and listen for events.

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18. Among AWT and Swing which is platform independent?

  1. AWT
  2. Swing

Answer: B) Swing

Explanation:

Swing framework is platform independent whereas AWT is platform dependent.

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19. Swing framework is ____ component?

  1. Heavyweight
  2. Lightweight

Answer: B) Lightweight

Explanation:

Swing framework is a lightweight component.

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20. The ____ class enables the development of abstract functions as well as action interfaces.

  1. Action
  2. Abstraction
  3. AbstractionAction

Answer: C) AbstractionAction

Explanation:

The AbstractAction class enables the development of abstract functions as well as action interfaces.

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21. ____ is a data transfer class that provides an easy way to transport data from the Jcomponent.

  1. DataShare
  2. Transfer
  3. DataTransfer
  4. TransferHandler

Answer: D) TransferHandler

Explanation:

TransferHandler is a data transfer class that provides an easy way to transport data from the Jcomponent.

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22. invokeandwait() method in Swing framework is ____.

  1. Synchronous
  2. Asynchronous

Answer: A) Synchronous

Explanation:

invokeandwait() method in the Swing framework is Synchronous.

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23. invokelater() method in Swing framework is ____?

  1. Synchronous
  2. Asynchronous

Answer: B) Asynchronous

Explanation:

invokelater() method in the Swing framework is Asynchronous.

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24. An ____ is a short software that runs in a web browser.

  1. Application
  2. AWT
  3. Applet
  4. JFrame

Answer: C) Applet

Explanation:

An applet is a short software that runs in a web browser.

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25. Is Applet and Application both are same in the swing framework?

  1. Yes
  2. No

Answer: B) No

Explanation:

An application and an applet are two sorts of Java programs with distinct features that execute in separate settings.

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26. The act of turning the state of a Swing component or set of components into a stream of bytes that can be saved to a file or transferred over a network is referred to as ____ in Swing.

  1. serialisation
  2. Accessibility
  3. Localization
  4. Globalization

Answer: A) serialisation

Explanation:

The act of turning the state of a Swing component or set of components into a stream of bytes that can be saved to a file or transferred over a network is referred to as serialization in Swing.

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27. A ____ is a Swing framework component that offers a scroll bar that may be used to scroll content in a container.

  1. JScrollPanel
  2. JScrollBox
  3. JScroll
  4. JScrollBar

Answer: D) JScrollBar

Explanation:

A JScrollBar is a Swing framework component that offers a scroll bar that may be used to scroll content in a container.

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28. A ____ is a container that provides a viewport for showing a piece of a bigger component.

  1. JScrollPanel
  2. JScrollBox
  3. JScroll
  4. JScrollPane

Answer: D) JScrollPane

Explanation:

A JScrollPane is a container that provides a viewport for showing a piece of a bigger component.

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29. EDT in Swing framework stands for ____.

  1. Event Driven thread
  2. Event Determined Thread
  3. Electronic-event-driven thread

Answer: A) Event Driven thread

Explanation:

EDT stands for Event-driven thread.

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30. A ____ is a type of object that organizes components in a container.

  1. Event adapter
  2. Event Handler
  3. layout manager
  4. Grid Manager

Answer: C) layout manager

Explanation:

A layout manager is a type of object that organizes components in a container.

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31. The ____ function allows you to paint with a Graphics object.

  1. AllPaint()
  2. Jpaint()
  3. Repaint()
  4. paint()

Answer: D) paint()

Explanation:

The paint() function allows you to paint with a Graphics object.

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32. Is Swing thread-safe?

  1. Yes
  2. No

Answer: B) No

Explanation:

No, Swing framework is not thread-safe.

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33. The ____ function is used to specify the layout of a container.

  1. UseLayeout()
  2. setLayout()
  3. layout()
  4. DesignLayout()

Answer: B) setLayout()

Explanation:

The setLayout() function is used to specify the layout of a container.

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34. ____ method validates the components of a container.

  1. Validate()
  2. Examine()
  3. Analyze()

Answer: A) Validate()

Explanation:

Validate() method validates the components of a container.

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35. Which of the following companies are using swing framework?

  1. IBM
  2. Oracle
  3. Microsoft
  4. All of the above

Answer: D) All of the above

Explanation:

Following companies are using swing framework:

  • IBM
  • Oracle
  • Amazon
  • Google

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