Java Utililty Methods Date Add

List of utility methods to do Date Add

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Description

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

Method

CalendaraddDate(Date date, int field, int add)
add Date 
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(field, add);
return calendar;
StringaddDate(Date date, int k)
add Date 
java.util.Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DATE, k);
return format(cal.getTime());
DateaddDate(Date date, int noOfDays)
Add no of days to a given date, pass negative number if past or to substract date. 
Calendar c1 = Calendar.getInstance();
c1.setTime(date);
c1.add(Calendar.DATE, noOfDays);
return c1.getTime();
DateaddDate(Date date, int years, int months, int days)
Calculates a date relative to the supplied date. 
Calendar calendar = Calendar.getInstance();
if (date != null)
    calendar.setTime(date);
if (years != 0)
    calendar.add(Calendar.YEAR, years);
if (months != 0)
    calendar.add(Calendar.MONTH, months);
if (days != 0)
...
DateaddDate(Date date, String unit, int quantity)
add date 
if (unit.equalsIgnoreCase("Year")) {
    return addYear(date, quantity);
if (unit.equalsIgnoreCase("Month")) {
    return addMonth(date, quantity);
if (unit.equalsIgnoreCase("Week")) {
    return addWeek(date, quantity);
...
StringaddDate(int field, int amount)
add Date 
int temp = 0;
if (field == 1) {
    temp = Calendar.YEAR;
if (field == 2) {
    temp = Calendar.MONTH;
if (field == 3) {
...
java.util.DateaddDate(java.util.Date date, int day)
add Date 
java.util.Calendar c = java.util.Calendar.getInstance();
c.setTime(date);
c.setTimeInMillis(c.getTimeInMillis() + (long) day * 24 * 3600 * 1000);
return c.getTime();
DateaddDate(String date)
add Date 
if (date == null) {
    return null;
Date tempDate = parseDate("yyyy-MM-dd", date);
String year = format(tempDate, "yyyy");
String month = format(tempDate, "MM");
String day = format(tempDate, "dd");
GregorianCalendar calendar = new GregorianCalendar(Integer.parseInt(year), Integer.parseInt(month) - 1,
...
DateaddDate(String date, int amount)
add Date 
if (date == null || "".equals(date.trim())) {
    return null;
Calendar calendar = Calendar.getInstance();
calendar.setTime(getDate(date));
calendar.add(Calendar.DATE, amount);
return calendar.getTime();
StringaddDate(String date, String type, int into)
add Date 
String Sdate = "";
try {
    GregorianCalendar grc = new GregorianCalendar();
    grc.setTime(new Date(date));
    if (type.equals("D")) {
        grc.add(GregorianCalendar.DATE, into);
    } else if (type.equals("M")) {
        grc.add(GregorianCalendar.MONTH, into);
...