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Swing Quiz – Details
| Quiz Name | Swing |
| Exam Type | MCQ (Multiple Choice Questions) |
| Category | Technical Quiz |
| Mode of Quiz | Online |
Java Swing Online Quiz Test – Practice Here
What is Swing in Java?
A. A programming language
B. A type of dance
C. A graphical user interface (GUI) toolkit
D. A data structure
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Answer: C. Swing is a GUI toolkit for Java programming language. It provides a set of components and tools for building user interfaces.
Which class is the base class for all Swing components?
A. java.awt.Component
B. java.awt.Container
C. javax.swing.JComponent
D. javax.swing.JPanel
Answer: C. javax.swing.JComponent is the base class for all Swing components. It provides a set of methods for painting, handling events, and managing layout.
Which of the following is not a Swing container?
A. JFrame
B. JDialog
C. JButton
D. JTabbedPane
Answer: C. JButton is not a container. It is a component that represents a button.
Which layout manager arranges components in a grid?
A. BorderLayout
B. FlowLayout
C. GridLayout
D. CardLayout
Answer: C. GridLayout arranges components in a grid. Each component takes up an equal amount of space in the grid.
What is the purpose of the GroupLayout layout manager?
A. To arrange components in a grid
B. To arrange components in a circular layout
C. To arrange components in a nested layout
D. To arrange components based on their preferred sizes
Answer: D. The GroupLayout layout manager arranges components based on their preferred sizes. It is used for creating complex layouts with nested components.
Which of the following is not a Swing component?
A. JTextArea
B. JLabel
C. JScrollPane
D. JPanel
Answer: C. JScrollPane is not a component. It is a container that provides a scrollable view of a component.
Which of the following components can display images?
A. JTextArea
B. JTable
C. JList
D. JLabel
Answer: D. JLabel can display images. It is a component that can display text, images, or both.
Which of the following components can be used to select a color?
A. JSlider
B. JColorChooser
C. JSpinner
D. JCheckBox
Answer: B. JColorChooser can be used to select a color. It is a dialog box that allows the user to choose a color.
Which of the following events is fired when a component gains focus?
A. mouseClicked
B. mouseEntered
C. focusGained
D. focusLost
Answer: C. focusGained is fired when a component gains focus. It is used to detect when a component becomes active.
Which of the following events is fired when a button is clicked?
A. mousePressed
B. mouseReleased
C. actionPerformed
D. keyPressed
Answer: C. actionPerformed is fired when a button is clicked. It is used to detect when the user interacts with a button.
Which of the following methods is used to add a component to a container?
A. addComponent()
B. addContainer()
C. addComponentToContainer()
D. add()
Answer: D. add() is used to add a component to a container. It is a method of the Container class.
Which of the following methods is used to set the size of a component?
A. setSize()
B. setPreferredSize()
C. setBounds()
D. setMinimumSize()
Answer: C. setBounds() is used to set the size and position of a component. It takes four parameters: x, y, width, and height.
Which of the following methods is used to set the layout manager of a container?
A. setLayoutManager ()
B. setLayout()
C. setContainerLayout()
D. setComponentLayout()
Answer: B. setLayout() is used to set the layout manager of a container. It takes one parameter, which is an object of a layout manager class.
Which of the following methods is used to get the selected item from a JComboBox?
A. getSelectedItem()
B. getSelectedIndex()
C. getItemAt()
D. setSelectedItem()
Answer: A. getSelectedItem() is used to get the selected item from a JComboBox. It returns an object that represents the selected item.
Which of the following methods is used to set the title of a JFrame?
A. setTitle()
B. setLabel()
C. setText()
D. setCaption()
Answer: A. setTitle() is used to set the title of a JFrame. It takes one parameter, which is a string that represents the title.
Which of the following methods is used to create a new JMenuBar object?
A. new JMenuBar()
B. createMenuBar()
C. makeMenuBar()
D. getMenuBar()
Answer: A. new JMenuBar() is used to create a new JMenuBar object. It returns an object of the JMenuBar class.
Which of the following methods is used to add a menu to a JMenuBar object?
A. addMenu()
B. createMenu()
C. makeMenu()
D. add()
Answer: D. add() is used to add a component to a container. It can also be used to add a menu to a JMenuBar object.
Which of the following methods is used to create a new JMenuItem object?
A. new JMenuItem()
B. createMenuItem()
C. makeMenuItem()
D. getMenuItem()
Answer: A. new JMenuItem() is used to create a new JMenuItem object. It returns an object of the JMenuItem class.
Which of the following methods is used to add an ActionListener to a JButton object?
A. addAction()
B. addActionListener()
C. addListener()
D. addEventHandler()
Answer: B. addActionListener() is used to add an ActionListener to a JButton object. It takes one parameter, which is an object that implements the ActionListener interface.
Which of the following methods is used to display a JOptionPane dialog box?
A. showMessageDialog()
B. showInputDialog()
C. showOptionDialog()
D. showConfirmDialog()
Answer: A. showMessageDialog() is used to display a JOptionPane dialog box with a message. It takes three parameters: the parent component, the message, and the dialog title.
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