I have seen most of the solutions found here. But I am having trouble with the calulation of the number of days when using 04/01/2004 to 04/30/2004 is calculating 29 days instead of 30. But when I use something like 04/01/2004 - 04/03/2004 it is calcualting 3 days which is correct. Also it is correct when I use 4/5/2004 - 04/30/2004. it appears to only give an incorrect number when I use a start date from standard time and a end date from daylight savings time.
Anyone else experience this?
I am using the difference in milliseconds, diffMilli/(24*60*60*1000).
I think this will work (UTC doesn't use daylight saving stuff):
Calendar c = Calendar.getInstance("UTC");
c.set(2004, 4, 1);
long l1 = c.getTimeInMillis();
c.set(2004, 4, 3);
long l2 = c.getTimeInMillis();
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Introduce Scanner class: