Java Generate all dates between x and y [duplicate]

Answer 1

Joda-Time

Calendar and Date APIs in java are really weird... I strongly suggest to consider jodatime, which is the de-facto library to handle dates. It is really powerful, as you can see from the quickstart: http://joda-time.sourceforge.net/quickstart.html.

This code solves the problem by using Joda-Time:

import java.util.ArrayList;
import java.util.List;

import org.joda.time.DateTime;


public class DateQuestion {

    public static List getDateRange(DateTime start, DateTime end) {

        List ret = new ArrayList();
        DateTime tmp = start;
        while(tmp.isBefore(end) || tmp.equals(end)) {
            ret.add(tmp);
            tmp = tmp.plusDays(1);
        }
        return ret;
    }

    public static void main(String[] args) {

        DateTime start = DateTime.parse("2012-1-1");
        System.out.println("Start: " + start);

        DateTime end = DateTime.parse("2012-12-31");
        System.out.println("End: " + end);

        List between = getDateRange(start, end);
        for (DateTime d : between) {
            System.out.println(" " + d);
        }
    }
}