Java Utililty Methods Date Start

return clearTime(date);

Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
return calendar.getTime();

return getFirstOfMonthCalendar(date).getTime();

Description:Get Monday of the week the day specified by parameter belongs to

Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int day = calendar.get(Calendar.DAY_OF_WEEK);
int offset = offsets[day - Calendar.SUNDAY];
calendar.add(Calendar.DAY_OF_YEAR, offset);
return calendar.getTime();

String startDate;
int year = getYear(date);
int month = getMonth(date);
int day = getDate(date);
int curDayOfWeek = getDayOfWeek(year, month, day);
int startTmp = 1 - curDayOfWeek;
Calendar tmpCalendar = Calendar.getInstance();
tmpCalendar.set(year, month - 1, day);
...

Calendar cal = Calendar.getInstance();
int month = cal.get(Calendar.MONTH);
int year = cal.get(Calendar.YEAR);
if (month >= 9 && month <= 2) {
    cal.set(year, Calendar.OCTOBER, 1, 0, 0, 0);
    return cal.getTime();
} else {
    cal.set(year, Calendar.APRIL, 1, 0, 0, 0);
...

Calendar now = Calendar.getInstance();
now.set(now.get(Calendar.YEAR), now.get(Calendar.MONTH), 1);
return now.getTime();

GregorianCalendar cal = new GregorianCalendar();
cal.setTime(date);
for (int field = 0; field < 5; field++)
    cal.set(ORDERED_DATE_FIELD[field], 0);
return cal;

Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(Calendar.MONTH, 1);
c.set(Calendar.DAY_OF_MONTH, 1);
date = c.getTime();
return date;

if (date == null)
    return null;
Calendar cal = GregorianCalendar.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);
...