DataCalculatingExample

DataCalculatingExample -:

                           [1000 milliseconds = 1 second

             60 seconds = 1 minute                                                

             60 minutes = 1 hour

             24 hours = 1 day]

            import java.text.SimpleDateFormat;

                 import java.util.Date;

 public class DataCalculatingExample{

      public static void main(String[] args) {

               String dateStart = "01/14/2012 09:29:58";

               String dateStop = "01/15/2012 10:31:48";

               //HH converts hour in 24 hours format (0-23), day calculation

               SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy              HH:mm:ss");

                      Date d1 = null;

                      Date d2 = null;

try {

                       d1 = format.parse(dateStart);

                       d2 = format.parse(dateStop);      //in milliseconds

                       long diff = d2.getTime() - d1.getTime();

                       long diffSeconds = diff / 1000 % 60;

                       long diffMinutes = diff / (60 * 1000) % 60;

                       long diffHours = diff / (60 * 60 * 1000) % 24;

                       long diffDays = diff / (24 * 60 * 60 * 1000);

                       System.out.print(diffDays + " days, ");

                       System.out.print(diffHours + " hours, ");

                       System.out.print(diffMinutes + " minutes, ");

                       System.out.print(diffSeconds + " seconds.");

}  catch (Exception e) {

                         e.printStackTrace();

}}}

Result

1 days, 1 hours, 1 minutes, 50 seconds.