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- import java.awt.event.ActionEvent;
- import java.awt.event.ActionListener;
- import java.text.MessageFormat;
- import javax.swing.Timer;
- public class Sandbox {
- private static int i = 0;
- public static void main(String[] args) {
- ActionListener listener = new ActionListener() {
- @Override public void actionPerformed(ActionEvent event) {
- i++;
- System.out.println(MessageFormat.format(
- "{0}: {1} ms", i, System.currentTimeMillis() % 1000000));
- }
- };
- System.out.println(MessageFormat.format(
- "start: {0} ms", System.currentTimeMillis() % 1000000));
- Timer timer = new Timer(1000, listener);
- timer.start();
- timer = new Timer(1000, listener); /* replace timer */
- timer.start();
- try {
- Thread.sleep(3000);
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
- System.exit(0);
- }
- }
- /*
- output:
- start: 849,378 ms
- 1: 850,574 ms
- 2: 850,574 ms <-- exact same millisecond
- 3: 851,569 ms
- 4: 851,570 ms <-- same millisecond, slight delay
- */
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