Java Format Duration in HH:mm:ss Format

In Java, you can format a duration using the Duration class which represents a duration of time. Here’s an example of how you can format a duration using Duration:

import java.time.Duration;
import java.time.format.DateTimeFormatter;

public class DurationFormatter {
    public static void main(String[] args) {
        Duration duration = Duration.ofHours(2).plusMinutes(30).plusSeconds(20);
        
        // format the duration
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm:ss");
        String formattedDuration = formatter.format(duration);
        
        System.out.println(formattedDuration); // prints "02:30:20"
    }
}

In this example, we create a Duration object that represents 2 hours, 30 minutes, and 20 seconds. Then, we create a DateTimeFormatter object that specifies the format we want to use for the duration (HH:mm:ss). Finally, we format the duration using the format() method of the formatter object and store the result in a string variable. The output will be “02:30:20”, which is the formatted duration.