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  1. What are the differences between JTextField and JTextArea in Java?

  2. How to convert a CLOB type to String in Java?

  3. How do we close resources automatically in Java?

  4. Can we use private methods in an interface in Java 9?

  5. What is an Event Handling and describe the components in Event Handling in Java?

  6. Can we define a parameterized constructor in an abstract class in Java?

  7. How can we call garbage collection (GC) explicitly in Java?

  8. What are the differences between JRadioButton and JCheckBox in Java?

  9. Explain the architecture of Java Swing in Java?

  10. How can we make JTextField accept only numbers in Java?

  11. What is the importance of SwingUtilities class in Java?

  12. What are the different types of JOptionPane dialogs in Java?

  13. What are the differences between a MouseListener and a MouseMotionListener in Java?

  14. What is the importance of a SwingWorker class in Java?

  15. What are the differences between a JComboBox and a JList in Java?

  16. How can we limit the number of characters inside a JTextField in Java?

  17. How can we implement a JToggleButton in Java?

  18. How many types of JDialog boxes can be created in Java?

  19. What are the differences between a JScrollBar and a JScrollPane in Java?

  20. How can we implement line wrap and word wrap text inside a JTextArea in Java?
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