Android Utililty Methods Date Set

List of utility methods to do Date Set

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Description

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

Method

DatetoDateTime(Date date, Date time)
to Date Time 
if (date == null)
    return null;
if (time == null)
    return date;
Calendar d = new GregorianCalendar();
d.setTime(date);
Calendar t = new GregorianCalendar();
t.setTime(time);
...
DateoffsetDate(Date date, int field, int offset)
offset Date 
Calendar calendar = convert(date);
calendar.add(field, offset);
return calendar.getTime();
StringchangeDate(String argDate)
change Date 
if (argDate == null || argDate.trim().equals("")) {
    return "";
String result = "";
if (argDate.length() == 10 && argDate.indexOf("/") > 0) {
    return argDate;
String[] str = argDate.split("[.]");
...
DatefirstTimeOfDate(Date date)
first Time Of Date 
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(date.getTime());
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
Date dateBegin = new Date();
dateBegin.setTime(calendar.getTimeInMillis());
return dateBegin;
DateresetTime(Date date)
reset Time 
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
DateremoveTime(Date date)
Remove the time of a date value 
GregorianCalendar gc = new GregorianCalendar();
gc.setTime(date);
gc.set(Calendar.HOUR_OF_DAY, 0);
gc.set(Calendar.MINUTE, 0);
gc.set(Calendar.SECOND, 0);
gc.set(Calendar.MILLISECOND, 0);
return gc.getTime();