How can I increment a date by one day in Java?

Question

I'm working with a date in this format: yyyy-mm-dd.

How can I increment this date by one day?

Answer 1

This is very simple, just use a syntax like this one:

String dt = "2019-07-12";  // Start date

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

Calendar c = Calendar.getInstance();

c.setTime(sdf.parse(dt));

c.add(Calendar.DATE, 1);  // number of days to add

dt = sdf.format(c.getTime());  // dt is now the new date

You can read about it here.

Answer 2

We can increment date by one day in java using 2 different approaches:

1. By using java.util.calendar class but this approach is considered the older approach.
2. By java.time package which is a new approach and it was introduced in Java 8 and this approach is more readable and provides better support for data & time manipulations.