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count days between dates - easy and very urgent

Posted on 2004-09-16
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Last Modified: 2012-06-27
Hi, I just need code that counts the number of days between two dates which are in the following format:

String date1 = "dd-MM-yyyy";
String date2 = "dd-MM-yyyy";

Thank you.
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Question by:iAwin
6 Comments
 
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by:armoghan
ID: 12081912
check this link as well
http://www.faqs.org/qa/qa-10170.html
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by:armoghan
ID: 12081913
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objects earned 800 total points
ID: 12081969
SimpleDateFormat sdf = new SimpleDateFormat("mm-MM-yyyy");
Date d1 = sdf.parse(date1);
Date d2 = sdf.parse(date2);
int days = d2.getTime() - d1.getTime())/1000/60/60/24;
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Expert Comment

by:nesnemis
ID: 12082042
You can use this function...

private long countDays(String date1, String date2)
      {
            String date[] = date1.split("-");
            Calendar d1 = new GregorianCalendar(Integer.parseInt(date[2]), Integer.parseInt(date[1]), Integer.parseInt(date[0]));
            
            date = date2.split("-");
            Calendar d2 = new GregorianCalendar(Integer.parseInt(date[2]), Integer.parseInt(date[1]), Integer.parseInt(date[0]));
            
            long diff = d1.getTimeInMillis() - d2.getTimeInMillis();
            if(d1.before(d2))
                  diff = d2.getTimeInMillis() - d1.getTimeInMillis();
            
            return diff/(24*60*60*1000);
      }
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Author Comment

by:iAwin
ID: 12198777

Thanks :)
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