Java Utililty Methods Second Format

int hours = simTimeSeconds / TIME_3600;
simTimeSeconds = simTimeSeconds - (hours * TIME_3600);
int minutes = simTimeSeconds / TIME_60;
simTimeSeconds = simTimeSeconds - (minutes * TIME_60);
int seconds = simTimeSeconds;
return nf.format(hours) + ":" + nf.format(minutes) + ":" + nf.format(seconds);

if (misSecond < 0) {
    throw new IllegalArgumentException("The misSecond must not be negative");
if (misSecond == 0) {
    return "--";
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(misSecond);
...

Calendar now = Calendar.getInstance();
now.add(Calendar.SECOND, seconds);
return now.getTime();

SimpleDateFormat format = new SimpleDateFormat(dateFormat);
Date startDate = format.parse(startDateStr);
Date endDate = format.parse(endDateStr);
return endDate.getTime() - startDate.getTime();

return getDate(strDate, "yyyy-MM-dd HH:mm:ss").getTime();

Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
String min;
min = dateString.substring(17, 19);
return min;

return format((double) getMili() / 1000.0);

Date date = new Date();
SimpleDateFormat format = new SimpleDateFormat("ss");
String output = format.format(date);
return output;

return FormatDate(date, "ss");

String cc = "1970-01-01 00:00:00";
final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
final SimpleDateFormat sdf1 = new SimpleDateFormat("HH:mm:ss");
Calendar cal = Calendar.getInstance();
try {
    cal.setTime(sdf1.parse(time));
} catch (ParseException e) {
    e.printStackTrace();
...