Java Swing Quiz

Which Java class is most commonly used as the main window for a Swing application?

• JPanel

• JFrame

• JButton

• JLabel

What determines how components are arranged in a Java Swing container?

• Event handler

• Layout manager

• Action listener

• Event queue

What kind of object is passed as a parameter to the actionPerformed method?

• MouseEvent

• KeyEvent

• ActionEvent

• WindowEvent

Which Java package contains the classes for handling events like ActionEvent and MouseEvent?

• java.io

• java.awt.event

• javax.swing

• java.util

Which container is typically used for grouping components together in Swing?

• JLabel

• JPanel

• JTextArea

• JButton

How can you connect a JButton to an ActionListener in Java?

• button.onClick(actionPerformed)

• button.attach(ActionListener)

• button.addActionListener(new ActionListener() { ... })

• button.setHandler(actionPerformed)

Which method of JTextField retrieves the user's input text?

• getText()

• read()

• getValue()

• input()

What is the role of main method when incorporating UI into code?

• To initialize event objects

• To start the application and create the UI

• To compile Swing components

• To handle system events

Which event type is generated when a key on the keyboard is pressed?

• WindowEvent

• ActionEvent

• KeyEvent

• MouseEvent

What is the purpose of event delegation model in Java?

• To reduce memory usage

• To separate event handling from UI design

• To avoid exceptions

• To speed up compilation