Java Utililty Methods Date Subtract

List of utility methods to do Date Subtract

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Description

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

Method

DatesubstractDaysFromDate(final Date date, final int substractDays)
Substract days to the given Date object and returns it. 
final Calendar dateOnCalendar = Calendar.getInstance();
dateOnCalendar.setTime(date);
dateOnCalendar.add(Calendar.DATE, substractDays * -1);
return dateOnCalendar.getTime();
Datesubtract(Date date, int num)
subtract 
Calendar canlendar = Calendar.getInstance();
canlendar.setTime(date);
canlendar.add(Calendar.DATE, -num);
return canlendar.getTime();
java.util.DatesubtractCertainYears(java.util.Date date, Integer years)
subtract Certain Years 
java.util.Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, -years);
return cal.getTime();
DatesubtractDate(Date date, int type, Integer quantity)
subtract Date 
return manipulateDate(date, type, quantity, SUBTRACT);
DatesubtractDate(Date date, int type, Integer quantity)
subtract Date 
return manipulateDate(date, type, quantity, SUBTRACT);
DatesubtractDay(final Date date)
Subtract one day from the supplied date 
return addDays(date, -1);
DatesubtractDays(Date dt, int days)
Subtract a number of days 
Calendar cal = Calendar.getInstance();
cal.setTime(dt);
cal.add(Calendar.DATE, -days);
return cal.getTime();
DatesubtractDurationToDate(Date date, String duration)
Subtracts duration to date 
final int negative = -1;
Date computedDate = null;
computedDate = computeDateFromDurationDate(date, duration, negative);
computedDate = computeDateFromDurationTime(computedDate, duration, negative);
return computedDate;
longsubtractNowDay(Date date)
subtract Now Day 
final int aDaymi = 24 * 60 * 60 * 1000;
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
long dateTimeInMillis = calendar.getTimeInMillis();
Calendar nowCalendar = Calendar.getInstance();
nowCalendar.setTime(new Date());
long nowTimeInMillis = nowCalendar.getTimeInMillis();
return (nowTimeInMillis - dateTimeInMillis) / (aDaymi);
...
DatesubtractOrAddDayDuration(Date date, int duration)
subtract Or Add Day Duration 
Calendar cal = new GregorianCalendar();
cal.setTime(date);
cal.add(Calendar.DAY_OF_MONTH, duration);
Date dateExpect = cal.getTime();
return dateExpect;