Javaで日付の差を取得する方法 (from stackoverflow) http://stackoverflow.com/questions/3951988/java-format-detailed-difference-between-dates
import java.lang.*;
/**
* from http://stackoverflow.com/questions/3951988/java-format-detailed-difference-between-dates
*/
public class DiffDate {
public static void main(String[] args) {
Date start = new Date(2010, 10, 13);
Date end = new Date(2010, 10, 18);
long diffInMillis = end.getTime() - start.getTime();
long diffInDays = diffInMillis/1000/86400;
long diffInHours = (diffInMillis/1000 - 86400*diffInDays) / 3600;
long diffInMins = (diffInMillis/1000 - 86400*diffInDays - 3600*diffInHours) / 60;
long diffInSecs = (diffInMillis/1000 - 86400*diffInDays - 3600*diffInHours - 60*diffInMins);
System.out.println(diffInDays);
System.out.println(diffInHours);
System.out.println(diffInMins);
System.out.println(diffInSecs);
}
}