package net.javaiq.examples.date;
import java.util.Calendar;
import java.util.GregorianCalendar;
@author
public class DaysBetweenCalculator {
public static int getDaysBetween(java.util.Date date1, java.util.Date date2) {
if (date1 == null || date2 == null) {
return -1;
}
GregorianCalendar gc1 = new GregorianCalendar();
gc1.setTime(date1);
GregorianCalendar gc2 = new GregorianCalendar();
gc2.setTime(date2);
if (gc1.get(Calendar.YEAR) == gc2.get(Calendar.YEAR)) {
return Math.abs(gc1.get(Calendar.DAY_OF_YEAR) - gc2.get(Calendar.DAY_OF_YEAR));
}
long time1 = date1.getTime();
long time2 = date2.getTime();
long days = (time1 - time2) / (1000 * 60 * 60 * 24);
return Math.abs((int)days);
}
}