How to add days to date using java

Question

DateUtil.addDays(days, date) is there any addDays method in java to add days to a date? Provide me any solution for this that how to add days to date

Answer 1

JDK native date/time handling is pretty poor. The Joda Time library's DateTime is better than java.util.Date class for anything requiring manipulation:

DateTime dt = new DateTime();
DateTime twoDaysLater = dt.plusDays(2);

If you want to create a DateTime from a java.util.Date:

Date nativeDate = new Date();
DateTime dt = new DateTime(nativeDate);

If you need to convert back to a java.util.Date:

Date date = dt.toDate();

Answer 2

You can use calendar.

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Calendar c = Calendar.getInstance();
c.setTime(new Date()); // Now use today date.
c.add(Calendar.DATE, 5); // Adding 5 days
String output = sdf.format(c.getTime());
System.out.println(output);

Answer 3

The closest thing in the JDK is using TimeUnit:

date.setTime(date.getTime() + TimeUnit.DAYS.toMillis(days));

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It is interesting to note that (quite unbelievably) Date is not immutable! Just one of many questionable design decisions in the JDK.