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

I wrote a simple utility function for this task which does not require any Java version nor instantiates any unnecessary objects:

/**
 * provides a String representation of the given time
 * @return {@code millis} in hh:mm:ss format
 */
public static final String formatTime(long millis) {
    long secs = millis / 1000;
    return String.format("%02d:%02d:%02d", secs / 3600, (secs % 3600) / 60, secs % 60);
}

Unlike some other solutions here, this can even deal with up to 100 hours