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2 Answer(s)      8 years ago
Posted in : Date-Calendar
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October 10, 2008 at 3:11 PM

Hi friend,

Code to help calculate the month and days :

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

public class DayDiff {

public static void main(String[] args) {

Date date = new Date();
SimpleDateFormat sdf;

//sdf = new SimpleDateFormat("dd/MMM/yyyy hh:mm:ss aa");
sdf = new SimpleDateFormat("yyyy/MM/dd");
System.out.println("date " + sdf.format(date));

//string containing date in one format
String strDate1 = sdf.format(date);
String strDate2 = "2008/09/01";

//create SimpleDateFormat object with source string date format
SimpleDateFormat sdfSource = new SimpleDateFormat("yyyy/MM/dd");

//parse the string into Date object
Date date1 = sdfSource.parse(strDate1);
Date date2 = sdfSource.parse(strDate2);

long diff = date1.getTime() - date2.getTime();

long diffDays = diff / (24 * 60 * 60 * 1000);
long days =0;
long months=0;
months = Math.round(diffDays/30);
days = diffDays%30;
System.out.println("months : " + months);
System.out.println("days : " + days);
months = diffDays/30;
System.out.println("months : " + months);


catch(ParseException pe)
System.out.println("Parse Exception : " + pe);

For more information on Java visit to :


October 10, 2008 at 3:43 PM

Check the Book "Exploring in C"

there this example present


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