Java Utililty Methods Date to Time

SimpleDateFormat printFormat = new SimpleDateFormat("HH:mm:ss");
return printFormat.format(date); 

StringBuffer sb = new StringBuffer();
Date current = Calendar.getInstance().getTime();
long diffInSeconds = (current.getTime() - dateTime.getTime()) / 1000;
long sec = (diffInSeconds >= 60 ? diffInSeconds % 60 : diffInSeconds);
long min = (diffInSeconds = (diffInSeconds / 60)) >= 60 ? diffInSeconds % 60 : diffInSeconds;
long hrs = (diffInSeconds = (diffInSeconds / 60)) >= 24 ? diffInSeconds % 24 : diffInSeconds;
long days = (diffInSeconds = (diffInSeconds / 24)) >= 30 ? diffInSeconds % 30 : diffInSeconds;
long months = (diffInSeconds = (diffInSeconds / 30)) >= 12 ? diffInSeconds % 12 : diffInSeconds;
...

return friendlyTimeFormat.format(date);

if (includeTime) {
    return getDateTimeString(date, DateFormat.MEDIUM, DateFormat.SHORT);
} else {
    return getDateString(date, DateFormat.MEDIUM);

String result = null;
if (date != null) {
    result = msfLong.format(date);
return result;

SimpleDateFormat formatter_f = new SimpleDateFormat("yyyy-MM-dd");
String str = formatter_f.format(date);
return str;

String DATE_FORMAT = "HH:mm:ss";
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(DATE_FORMAT);
String formattedTime = sdf.format(date);
return formattedTime;

String[] time = new String[2];
Calendar cal = Calendar.getInstance();
cal.setTime(date);
time[0] = Integer.toString(cal.get(Calendar.HOUR_OF_DAY));
time[1] = Integer.toString(cal.get(Calendar.MINUTE));
return time;

return new SimpleDateFormat("HH:mm:ss").format(date);

sFormat = new SimpleDateFormat(TIME_FORMAT, Locale.CHINA);
return sFormat.format(date);