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

I am getting date in the format as yyyy-mm-dd. I need to increment this by one day. How can I do this?

From stackoverflow

• Convert it to a date, add one day and convert it back to the string with the specific format.

  Mark Robinson : How would add one day to a java.sql.Date object? The only way I can see is to add milliseconds but you running in to issues with day light savings this way.

  Mehrdad Afshari : See other answers. I prefer not to give "perfect code snippets" to homework style questions.

  Mark Robinson : Other answers use Calendar object, I ask b/c i've used the Date object in the past and ran into the day light saving problem. Just curious to see if there was another way to do it that i didn't think of.

  Mehrdad Afshari : Mark: I would have done it with the calendar object. Not sure if there is another good way.

  Mark Robinson : Ok thanks Mehrdad just wondering.

• can u pleae give me example to do that afshari

  Geoffrey Chetwood : This is not an answer, please put this in a comment or edit your question.

  Michael Myers : A reasonable request, but not an answer. Could you please move this to a comment on his answer instead?

  krosenvold : You should either update your question or add a comment to the answer in question. Do not add a further question as an answer.

• Construct a Calendar object and use the method add(Calendar.DATE, 1);

• Use the DateFormat API to convert the String into a Date object, then use the Calendar API to add one day. Let me know if you want specific code examples, and I can update my answer.

• SimpleDateFormat dateFormat = new SimpleDateFormat( "yyyy-MM-dd" );
  Calendar cal = Calendar.getInstance();
  cal.setTime( dateFormat.parse( inputString ) );
  cal.add( Calendar.DATE, 1 );
  

  MetroidFan2002 : Downvoted: This answer assumes Calendar is a GregorianCalendar, which ignores the current Locale. Use Calendar.getInstance() instead.

• Something like this should do the trick:

  String dt = "2008-01-01";  // 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
  

  Esko : c.roll(Calendar.DATE, true); would be somewhat better for clarity.

  Sam Hasler : @Esko, c.roll(Calendar.DATE, true) won't roll the month on the last day of the month.

• Take a look at Joda-Time (http://joda-time.sourceforge.net/).

  DateTimeFormatter parser = ISODateTimeFormat.date();
  
  DateTime date = parser.parseDateTime(dateString);
  
  String nextDay = parser.print(date.plusDays(1));
  

  MetroidFan2002 : You can remove the parser calls for constructing the DateTime. Use DateTime date = new DateTime(dateString); Then, nextDay is ISODateTimeFormat.date().print(date.plusDays(1)); See http://joda-time.sourceforge.net/api-release/org/joda/time/DateTime.html#DateTime(java.lang.Object) for more info.

• Date d1 = new Date();

  Date d2 = new Date();

  d2.setTime(d1.getTime() + 1 * 24 * 60 * 60 * 1000);