Finding days difference in java

Question

After consulting a few forums, I ended up using the code below to find the days difference. But, I see a problem with the logic (may be it\'s my over sight?). I see that for

Answer 1

Date(year,day, month ) constructor is deprecated. i would simply use Calendars methods to get the difference between two days:

Calendar cal1=Calendar.getInstance();
Calendar cal2=Calendar.getInstance();
cal1.setTime(createdDate);
cal2.setTime(expirationDate);
System.out.println(cal2.get(Calendar.DAY_OF_MONTH )-cal1.get(Calendar.DAY_OF_MONTH ) );

EDIT:

Calendar cal1 = Calendar.getInstance();
cal1.set(2013, 2, 11);
Calendar cal2 = Calendar.getInstance();
cal2.set(2013, 2, 11);
for (int i = 11; i < 20; i++) {
 cal2.set(Calendar.DATE, i);
    System.out.println("11 to " + i + " = " + (cal2.get(Calendar.DAY_OF_MONTH) -cal1.get(Calendar.DAY_OF_MONTH)));
}

OUTPUT:

11 to 11 = 0
11 to 12 = 1
11 to 13 = 2
11 to 14 = 3
11 to 15 = 4
11 to 16 = 5
11 to 17 = 6
11 to 18 = 7
11 to 19 = 8