Java Utililty Methods Millisecond Format

List of utility methods to do Millisecond Format

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Description

The list of methods to do Millisecond Format are organized into topic(s).

Method

StringreverseFormattedDateWithMilliseconds()
reverse Formatted Date With Milliseconds 
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, 1);
SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmssSSS");
String formatted = format.format(cal.getTime());
assert (formatted != null);
return formatted;
longstringToTimestampInMilliseconds(String s, DateFormat formatter)
Convert a date time string (e.g., "2011-06-07 19:12:18") to a timestamp in milliseconds (i.e., the number of milliseconds since January 1, 1970, 00:00:00 GMT. 
Date d = stringToDate(s, formatter);
return d == null ? 0 : d.getTime();
longstrToDateMillisTimestamp(String dateStr, String formatStr)
str To Date Millis Timestamp 
Date date = strToDate(dateStr, formatStr);
return date != null ? date.getTime() : 0;
StringtimeFormat(final long milliseconds)
Converts into seconds and returns a string in the format . . 
double seconds = milliseconds / 1000.0d;
final NumberFormat fmt = new DecimalFormat("#0.000");
return fmt.format(seconds);
StringtimeMillisToString(long timeMillis, String dateFormat)
time Millis To String 
if ("".equals(dateFormat) || dateFormat == null) {
    return null;
try {
    return new SimpleDateFormat(dateFormat).format(new Date(timeMillis));
} catch (Exception e) {
    return null;