Java Utililty Methods Date Format

List of utility methods to do Date Format

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Description

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

Method

StringdateFormat(Date date, String format)
Retorna uma data formatada conforme String format passado 
SimpleDateFormat sf = new SimpleDateFormat(format);
return sf.format(date);
StringdateFormat(Date date, String pattern)
date Format 
if (date == null || isNullString(pattern)) {
    return "";
SimpleDateFormat format = new SimpleDateFormat(pattern);
return format.format(date);
StringdateFormat(Date date, String pattern)
date Format 
if (pattern == null || "".equals(pattern.trim())) {
    pattern = DATE_PATTERN;
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
return sdf.format(date);
StringdateFormat(Date date, String pattern)
date Format 
SimpleDateFormat df = new SimpleDateFormat(pattern);
return df.format(date);
StringdateFormat(DateFormat f, Date d)
Formats a Date into a date/time string. 
synchronized (f) {
    return f.format(d);
DateFormatdateFormat(int grain, TimeZone timeZone)
date Format 
SimpleDateFormat result = dateFormat(grain);
if (timeZone != null) {
    result = new SimpleDateFormat(result.toPattern());
    result.setTimeZone(timeZone);
return result;
StringdateFormat(java.util.Date date, String formatStr)
date Format 
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(formatStr);
return sdf.format(date);
StringdateFormat(long time)
date Format 
return dateFormat(new Date(time));
DatedateFormat(String date, String dateFormat)
date Format 
if (date == null)
    return null;
SimpleDateFormat format = new SimpleDateFormat(dateFormat);
if (date != null)
    try {
        return format.parse(date);
    } catch (Exception ex) {
return null;
StringDateFormat(String dateStr, String oldPattern, String newPattern)
Date Format 
SimpleDateFormat sdf = new SimpleDateFormat(oldPattern);
Date date = null;
try {
    date = sdf.parse(dateStr);
} catch (ParseException e) {
    e.printStackTrace();
    return "";
return new SimpleDateFormat(newPattern).format(date);