Java timer or time counter - Md-MamunAbdulKayum/Java-Timer-Time-Counter GitHub Wiki

We are going to use Timer class of swing (javax.swing.Timer).

Create a Timer:

private long startTime = -1; private long initialTime = 0; SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");

Timer timer = new Timer(10, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (startTime < 0) { startTime = System.currentTimeMillis(); System.out.println("Start: "+startTime); } long now = System.currentTimeMillis(); System.out.println("Now: "+now); long clockTime = now - startTime; System.out.println("clockTime: "+clockTime); df.setTimeZone(TimeZone.getTimeZone("GMT")); jLabel1.setText(df.format(clockTime)); } });

Start the timer:

timer.start();

Stop the timer:

timer.stop();