Java Utililty Methods Date Create

List of utility methods to do Date Create

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Description

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

Method

DatecreateDateObject(Integer year, Integer month, Integer dayOfMonth, Integer hourOfDay, Integer minute, Integer second, Integer milissecond)
Create a Date object based on default Calendar instance. 
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month);
c.set(Calendar.DAY_OF_MONTH, dayOfMonth);
if (hourOfDay != null) {
    c.set(Calendar.HOUR_OF_DAY, hourOfDay);
if (minute != null) {
...
DatecreateDates(int yy, int mm, int dd, int hh, int min, int ss)
create Dates 
Calendar c1 = Calendar.getInstance();
c1.set(Calendar.YEAR, yy);
c1.set(Calendar.MONTH, mm);
c1.set(Calendar.DAY_OF_MONTH, dd);
c1.set(Calendar.HOUR_OF_DAY, hh);
c1.set(Calendar.MINUTE, min);
c1.set(Calendar.SECOND, ss);
return c1.getTime();
...
StringcreateDateString(long startDate, long endDate)
create Date String 
GregorianCalendar cal = (GregorianCalendar) Calendar.getInstance(TimeZone.getDefault());
StringBuffer dateLine = new StringBuffer(50);
Formatter formatter = new Formatter(dateLine, Locale.ENGLISH);
cal.setTimeInMillis(startDate);
dateLine.append("From ");
formatter.format("%1$tH:%1$tM (GMT) %1$tb %1$te,%1$tY", cal);
cal.setTimeInMillis(endDate);
dateLine.append(" to ");
...
DatecreateDateTime(Date date, Date time)
combine a date (yy/mm/dd) and a time (hh:mm:ss) into a combined timestamp-date containing both date and time. 
Calendar cal1 = Calendar.getInstance();
cal1.setTime(date);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(time);
cal1.set(Calendar.HOUR_OF_DAY, cal2.get(Calendar.HOUR_OF_DAY));
cal1.set(Calendar.MINUTE, cal2.get(Calendar.MINUTE));
cal1.set(Calendar.SECOND, cal2.get(Calendar.SECOND));
cal1.set(Calendar.MILLISECOND, cal2.get(Calendar.MILLISECOND));
...
DatecreateDateTime(int year, int month, int day, int hour, int minute, int second, String timezone)
create Date Time 
TimeZone zone = null;
if (timezone != null && !timezone.isEmpty()) {
    zone = TimeZone.getTimeZone(timezone);
if (zone == null) {
    zone = TimeZone.getDefault();
Calendar calendar = Calendar.getInstance(zone);
...
DatecreateFutureDate()
create Future Date 
GregorianCalendar futureDate = new GregorianCalendar(); 
futureDate.add(Calendar.MONTH, 2);
return futureDate.getTime();
LongcreateFutureDate(int min)
create Future Date 
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MINUTE, min);
return cal.getTimeInMillis();
DatecreateInitialDateQuery(final Date date)
Convert Date to same Date with first minute of day. 
final Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
DatecreateTime(Date date)
create Time 
Calendar time = new GregorianCalendar();
time.setTime(date);
time.set(1970, 0, 1);
return time.getTime();
Stringdate()
date 
return String.format(DATE_FORMAT, getDate());