How to convert the seconds in this format “HH:mm:ss”

Question

I want to convert the second/milliseconds in this format \"HH:mm:ss\" (for esamples, from 5 seconds to 00:00:05). I tried to get that format in this way:

int mil         


        

Answer 1

Java 9 answer:

    Duration dur = Duration.ofMillis(millis);
    System.out.println(String.format("%02d:%02d:%02d",
                       dur.toHours(), dur.toMinutesPart(), dur.toSecondsPart()));

(not tested yet)

The toXxPart methods are described in the API docs for Java 9.