Digital Clock in Java

 

1. import javax.swing.*;
2. import java.awt.*;
3. import ;
4. import java.util.Date;
5.  
6. public class DigitalClockApp extends JFrame {
7. private JLabel timeLabel;
8.  
9. public DigitalClockApp() {
10. setTitle("Digital Clock");
11. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
12. setSize(200, 100);
13. setLocationRelativeTo(null);
14.  
15. // Create the time label
16. timeLabel = new JLabel();
17. timeLabel.setFont(new Font("Arial", Font.BOLD, 24));
18. timeLabel.setHorizontalAlignment(SwingConstants.CENTER);
19. updateTime();
20.  
21. // Set the time label as the content pane
22. setContentPane(timeLabel);
23.  
24. // Start a timer to update the time every second
25. Timer timer = new Timer(1000, e -> updateTime());
26. timer.start();
27. }
28.  
29. private void updateTime() {
30. SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
31. String time = dateFormat.format(new Date());
32. timeLabel.setText(time);
33. }
34.  
35. public static void main(String[] args) {
36. SwingUtilities.invokeLater(() -> {
37. DigitalClockApp app = new DigitalClockApp();
38. app.setVisible(true);
39. });
40. }
41. }
42.  

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