Java Weekend getWeekRange(String strBeginDate, String strEndDate, String pattern)

Description

get Week Range

License

Open Source License

Declaration

public static List<String> getWeekRange(String strBeginDate, String strEndDate, String pattern) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

public class Main {
    /**/*from  www .  j  a  v a  2s.  c  o m*/
     * default date format pattern
     */
    public final static String DATE_FORMAT = "yyyy-MM-dd";

    public static List<String> getWeekRange(String strBeginDate, String strEndDate, String pattern) {
        List<String> ret = new ArrayList<String>();
        Date beginDate = parseDate(strBeginDate);
        Date endDate = parseDate(strEndDate);

        String beginFormat = formatDate(beginDate, pattern);
        String endFormat = formatDate(endDate, pattern);
        ret.add(beginFormat);

        while (!beginFormat.equals(endFormat)) {
            beginDate = addWeek(beginDate, 1);
            beginFormat = formatDate(beginDate, pattern);
            ret.add(beginFormat);
        }
        return ret;
    }

    /**
     * parse date with the default pattern
     *
     * @param date string date
     * @return the parsed date
     */
    public static Date parseDate(String date) {
        SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT);
        try {
            return format.parse(date);
        } catch (ParseException e) {
            return new Date();
        }
    }

    public static Date parseDate(String date, String pattern) {
        SimpleDateFormat format = new SimpleDateFormat(pattern);
        try {
            return format.parse(date);
        } catch (ParseException e) {
            return new Date();
        }
    }

    /**
     * format date with the default pattern
     *
     * @param date the date that want to format to string
     * @return the formated date
     */
    public static String formatDate(Date date) {
        SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT);
        return format.format(date);
    }

    /**
     * format date with the given pattern
     *
     * @param date the date that want to format to string
     * @param pattern the formated pattern
     * @return the formated date
     */
    public static String formatDate(Date date, String pattern) {
        if (date == null) {
            return null;
        }
        SimpleDateFormat format = new SimpleDateFormat(pattern);
        return format.format(date);
    }

    public static Date addWeek(Date date, int i) {
        Calendar calendar = getDefaultCalendar();
        calendar.setTime(date);
        calendar.add(Calendar.WEEK_OF_YEAR, i);
        return calendar.getTime();
    }

    /**
     * get the default calendar
     *
     * @return the calendar instance
     */
    public static Calendar getDefaultCalendar() {
        Calendar calendar = Calendar.getInstance();
        calendar.setFirstDayOfWeek(Calendar.MONDAY);
        return calendar;
    }
}

Related

1. endOfWeek(Date date, String format)
2. getCalendarWeekOfDate(Date date)
3. getCurWeekEnd(String strDate)
4. isEndOfWeek()
5. isWeekend(Calendar calendar)
6. isWeekend(Calendar dateCal)
7. isWeekend(Date date)