Does anyone know of a Java library that can pretty print a number in milliseconds in the same way that C# does?
E.g., 123456 ms as a long would be printed as 4d1h3m5s.
Joda Time has a pretty good way to do this using a PeriodFormatterBuilder.
Quick Win: PeriodFormat.getDefault().print(duration.toPeriod());
e.g.
//import org.joda.time.format.PeriodFormatter;
//import org.joda.time.format.PeriodFormatterBuilder;
//import org.joda.time.Duration;
Duration duration = new Duration(123456); // in milliseconds
PeriodFormatter formatter = new PeriodFormatterBuilder()
.appendDays()
.appendSuffix("d")
.appendHours()
.appendSuffix("h")
.appendMinutes()
.appendSuffix("m")
.appendSeconds()
.appendSuffix("s")
.toFormatter();
String formatted = formatter.print(duration.toPeriod());
System.out.println(formatted);