Java Calendar Holiday getHolidays(Calendar beginDate, Calendar endDate)

Description

get Holidays

License

Apache License

Declaration

public static int getHolidays(Calendar beginDate, Calendar endDate) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.Calendar;

public class Main {

    public static int getHolidays(Calendar beginDate, Calendar endDate) {
        return getDaysBetween(beginDate, endDate)
                - getWorkingDay(beginDate, endDate);

    }//from www .  jav a2s  . c  o m

    public static int getDaysBetween(Calendar beginDate, Calendar endDate) {
        if (beginDate.after(endDate)) {
            Calendar swap = beginDate;
            beginDate = endDate;
            endDate = swap;
        }
        int days = endDate.get(Calendar.DAY_OF_YEAR)
                - beginDate.get(Calendar.DAY_OF_YEAR) + 1;
        int year = endDate.get(Calendar.YEAR);
        if (beginDate.get(Calendar.YEAR) != year) {
            beginDate = (Calendar) beginDate.clone();
            do {
                days += beginDate.getActualMaximum(Calendar.DAY_OF_YEAR);
                beginDate.add(Calendar.YEAR, 1);
            } while (beginDate.get(Calendar.YEAR) != year);
        }
        return days;
    }

    public static int getWorkingDay(Calendar beginDate, Calendar endDate) {
        int result = -1;
        if (beginDate.after(endDate)) {
            Calendar swap = beginDate;
            beginDate = endDate;
            endDate = swap;
        }
        int charge_start_date = 0;
        int charge_end_date = 0;
        int stmp;
        int etmp;
        stmp = 7 - beginDate.get(Calendar.DAY_OF_WEEK);
        etmp = 7 - endDate.get(Calendar.DAY_OF_WEEK);
        if (stmp != 0 && stmp != 6) {
            charge_start_date = stmp - 1;
        }
        if (etmp != 0 && etmp != 6) {
            charge_end_date = etmp - 1;
        }
        result = (getDaysBetween(getNextMonday(beginDate),
                getNextMonday(endDate)) / 7)
                * 5
                + charge_start_date
                - charge_end_date;
        return result;
    }

    public static Calendar getNextMonday(Calendar date) {
        Calendar result = null;
        result = date;
        do {
            result = (Calendar) result.clone();
            result.add(Calendar.DATE, 1);
        } while (result.get(Calendar.DAY_OF_WEEK) != 2);
        return result;
    }
}

Related

1. isHoliday(Calendar cal)
2. isHolidayInGermany(Calendar day)