method to find difference between dates
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Posted By:   Pallavi_b
Posted On:   Tuesday, September 4, 2001 12:38 AM

I just wanna know if there is any method to find date difference or u have to write a code for the same.If there is any such method or code for the same please lemme know
Pallavi

Here's a method to find the number of days between two dates.

Posted By:   Doug_Bell  
Posted On:   Saturday, October 6, 2001 01:50 PM

I wrote a method a while back to calculate the number of days between two dates that is independent of the calendar type:




/**
* Calculates the number of days between two calendar days in a manner
* which is independent of the Calendar type used.
*
* @param d1 The first date.
* @param d2 The second date.
*
* @return The number of days between the two dates. Zero is
* returned if the dates are the same, one if the dates are
* adjacent, etc. The order of the dates
* does not matter, the value returned is always >= 0.
* If Calendar types of d1 and d2
* are different, the result may not be accurate.
*/
static int getDaysBetween (java.util.Calendar d1, java.util.Calendar d2) {
if (d1.after(d2)) { // swap dates so that d1 is start and d2 is end
java.util.Calendar swap = d1;
d1 = d2;
d2 = swap;
}
int days = d2.get(java.util.Calendar.DAY_OF_YEAR) -
d1.get(java.util.Calendar.DAY_OF_YEAR);
int y2 = d2.get(java.util.Calendar.YEAR);
if (d1.get(java.util.Calendar.YEAR) != y2) {
d1 = (java.util.Calendar) d1.clone();
do {
days += d1.getActualMaximum(java.util.Calendar.DAY_OF_YEAR);
d1.add(java.util.Calendar.YEAR, 1);
} while (d1.get(java.util.Calendar.YEAR) != y2);
}
return days;
} // getDaysBetween()

Re: method to find difference between dates

Posted By:   Ravi_Verelly  
Posted On:   Tuesday, September 4, 2001 12:54 PM

The following is one solution, as there are numerous ways we can achieve this:

import java.util.*;

int syear = 2000;

int eyear = 2000;

int smonth = 2;//Feb

int emonth = 3;//Mar

int sday = 27;

int eday = 1;

Date startDate = new Date(syear-1900,smonth-1,sday);

Date endDate = new Date(eyear-1900,emonth-1,eday);

int difInDays = (int) ((endDate.getTime() - startDate.getTime())/(1000*60*60*24));

Re: method to find difference between dates

Posted By:   AlessandroA_Garbagnati  
Posted On:   Tuesday, September 4, 2001 07:52 AM

Hi,

There is no such method, but you can easily write the code using, for example, the class java.util.Calendar.
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