Date and Time Difference in Java

Classes Which are used in the Program for calculating the time difference...

java.text 
Class SimpleDateFormat

java.lang.Object
  java.text.Format
      java.text.DateFormat
          java.text.SimpleDateFormat

All Implemented Interfaces:

Cloneable, Serializable

 

java.util 
Class Date

java.lang.Object
  java.util.Date

All Implemented Interfaces:

Serializable, Cloneable, Comparable<Date>

Direct Known Subclasses:

Date, Time, Timestamp

 

 

Here the sample code for getting the time difference HH:MM:SS Format...

 

package com.sana.test.date;

import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeDiffTest {

    public static void main(String[] args) {

        String startDate = "01/23/2013 06:34:44";
        String endDate= "01/24/2013 08:22:57";

        //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(startDate );
            d2 = format.parse(endDate);

            //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();
        }

    }

}

 

 

THANKS 

SANA