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July 10, 2021 01:00
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Java 8 Elapsed time with Guava
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| import com.google.common.base.Stopwatch; | |
| import java.awt.event.ActionEvent; | |
| import java.awt.event.ActionListener; | |
| import java.time.Duration; | |
| import javax.swing.Timer; | |
| /** | |
| * | |
| * @author Rodrigo | |
| */ | |
| public class ElapsedTime { | |
| static Stopwatch stopwatch; | |
| public static void main(String[] args) throws Exception { | |
| stopwatch = Stopwatch.createStarted(); | |
| Timer timer = new Timer(10, new hour()); | |
| timer.start(); | |
| Thread.sleep(100); | |
| } | |
| private static String formatDuration(Duration d) { | |
| long days = d.toDays(); | |
| d = d.minusDays(days); | |
| long hours = d.toHours(); | |
| d = d.minusHours(hours); | |
| long minutes = d.toMinutes(); | |
| d = d.minusMinutes(minutes); | |
| long seconds = d.getSeconds(); | |
| return String.format("%02d", hours) | |
| + ":" + String.format("%02d", minutes) | |
| + ":" + String.format("%02d", seconds); | |
| } | |
| public static class hour implements ActionListener { | |
| @Override | |
| public void actionPerformed(ActionEvent e) { | |
| Duration duration = stopwatch.elapsed(); | |
| System.out.println("Elapsed time - " + formatDuration(duration)); | |
| // ... new JLabel("Elapsed time - " + formatDuration(duration)); | |
| } | |
| } | |
| } |
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