Calculate two dates in Java for a few days

1.public class Test {

2.public void DateDiff (String starttime, String endtime, string format) {

3.//generates a Simpledateformate object in the format passed in

4.SimpleDateFormat sd = new SimpleDateFormat (format);

5.long nd = 1000*24*60*60;//number of milliseconds in a day

6.long NH = 1000*60*60;//milliseconds in one hour

7.long nm = 1000*60;//of milliseconds in one minute

8.long ns = 1000;//number of milliseconds in a second

9.long diff;

10.try {

11.//the millisecond time difference for two time

12.diff = Sd.parse (endtime). GetTime ()-Sd.parse (StartTime). GetTime ();

13.long Day = diff/nd;//How many days to calculate the difference

14.long hour = diff%nd/nh;//Calculate how many hours difference

15.long min = diff%nd%nh/nm;//calculation difference How many minutes

16.long sec = diff%nd%nh%nm/ns;//Calculation difference how many seconds

17.//Output Results

18.system.out.println ("Time difference:" +day+ "Day" +hour+ "hour" +min+ "Minute" +sec+ "second. ");

(ParseException e) {

20.e.printstacktrace ();

21.}

22.}

23.

24.

25.public static void Main (string[] args) {

26.new Test (). DateDiff (New SimpleDateFormat ("Yyyy-mm-dd"). Format (new Date ()), "2010-8-23", "yyyy-mm-dd");

27.}

28.}