Java GUI Programming Quiz

Which package contains the primary classes for creating a GUI in Java?

• java.io

• javax.swing

• java.lang

• java.net

Which component serves as the main top-level window in a Swing application?

• JPanel

• JButton

• JFrame

• JLabel

Which method is used to make a JFrame visible on the screen?

• setVisible(true)

• showWindow()

• display(true)

• appear()

What is the default Layout Manager for a JFrame?

• FlowLayout

• GridLayout

• BoxLayout

• BorderLayout

Which interface must be implemented to handle button click events?

• MouseListener

• ActionListener

• KeyListener

• WindowListener

In a BorderLayout, which region is the default if no constraints are specified?

• NORTH

• SOUTH

• CENTER

• WEST

Which Swing component allows a user to type a single line of text?

• JTextArea

• JTextField

• JLabel

• JButton

What is the purpose of the pack() method in JFrame?

• To compress the file size

• To set the window to its preferred size based on its components

• To close the application

• To group all buttons together

Which method is used to change the text displayed on a JLabel?

• getText()

• updateText()

• setText()

• changeLabel()

Which layout manager arranges components in a rectangular grid of equal-sized cells?

• FlowLayout

• BorderLayout

• GridLayout

• CardLayout