> I wrote a date difference programs. However, two programs give me
> different results? one day difference, why? Program 1, show me output as
> 365; Program 2, show me 364.
>
> Both programs are identical except Program 2, embedded yy, mm, dd on the
> Calendar.set() method.
>
>
> Program 1:
> import java.util.*;
>
> public class Try {
> public static void main(String[] arg) {
> String ddd = "02/07/02";
> int yy = 2000 + Integer.parseInt(ddd.substring(6,8));
> int mm = Integer.parseInt(ddd.substring(0,2)) - 1;
> int dd = Integer.parseInt(ddd.substring(3,5));
> System.out.println(yy + " " + mm + " " + dd);
> Calendar mat = Calendar.getInstance();
> mat.set(yy, mm, dd);
> Calendar now = Calendar.getInstance();
> long days = (mat.getTime().getTime() - now.getTime().getTime()) /
> 86400000L;
> System.out.println(days);
> }
> }
>
> Program 2:
> import java.util.*;
>
> public class Try {
> public static void main(String[] arg) {
> String ddd = "02/07/02";
> Calendar mat = Calendar.getInstance();
> mat.set(2000 + Integer.parseInt(ddd.substring(6,8)),
> Integer.parseInt(ddd.substring(0,2)) - 1,
> Integer.parseInt(ddd.substring(3,5)));
> Calendar now = Calendar.getInstance();
> long days = (mat.getTime().getTime() - now.getTime().getTime()) /
> 86400000L;
> System.out.println(days);
> }
> }
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