Java でミリ秒タイムスタンプを HH:mm:ss:SSS 形式に変換する方法

// Create a Date object from the timestamp
Date date = new Date(logEvent.timeStamp);

// Create a SimpleDateFormat object with the desired time format
DateFormat formatter = new SimpleDateFormat("HH:mm:ss.SSS");

// Set the SimpleDateFormat time zone to UTC for correct time formatting
formatter.setTimeZone(TimeZone.getTimeZone("UTC"));

// Format the Date object and convert it to a string
String dateFormatted = formatter.format(date);

// Display the formatted time string
System.out.println(dateFormatted); // Prints time in h:m:s:ms format