How Can I Format a Duration in Java as H:MM:SS?

Formatting Durations in Java as H:MM:SS

In Java, the existing time formatting utilities are primarily focused on formatting timestamps rather than durations. To format durations effectively, you can employ a straightforward approach using a Formatter or related shortcuts.

For instance, given an integer representing seconds (s), you can format it into the desired H:MM:SS format using the following pattern:

String.format("%d:%02d:%02d", s / 3600, (s % 3600) / 60, (s % 60));

In this expression:

• s / 3600: Calculates the number of hours
• (s % 3600) / 60: Determines the number of minutes
• (s % 60): Obtains the number of seconds

By utilizing this approach, you can conveniently format durations into the H:MM:SS pattern without introducing external libraries into your Java code.

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