Java Week Day getDaysExceptWeekend(String from, String to)

Description

get Days Except Weekend

License

Open Source License

Declaration

public static int getDaysExceptWeekend(String from, String to) 

Method Source Code

//package com.java2s;

import java.util.Calendar;

public class Main {
    public static int getDaysExceptWeekend(String from, String to) {
        if (from.compareTo(to) > 0) {
            String tmp = from;/*from   w  w w  .  j  a  v  a  2  s  .c o  m*/
            from = to;
            to = tmp;
        }
        Calendar begin = parseCalendar(from);
        Calendar end = parseCalendar(to);
        int sum = 0;

        while (!dateEquals(begin, end)) {
            if (!isWeekEnd(begin)) {
                sum++;
            }
            begin.add(Calendar.DATE, 1);
        }

        if (!isWeekEnd(end)) {
            sum++;
        }
        return sum;
    }

    public static Calendar parseCalendar(String s) {
        Calendar c = Calendar.getInstance();
        try {
            int d = Integer.parseInt(s);
            int year = d / 10000;
            int month = (d % 10000) / 100;
            int day = d % 100;
            c.set(year, month - 1, day);
        } catch (Exception e) {
            return null;
        }
        return c;
    }

    public static boolean dateEquals(Calendar c1, Calendar c2) {
        return c1.get(Calendar.YEAR) == c2.get(Calendar.YEAR) && c1.get(Calendar.MONTH) == c2.get(Calendar.MONTH)
                && c1.get(Calendar.DATE) == c2.get(Calendar.DATE);
    }

    public static boolean isWeekEnd(Calendar c) {
        int day = c.get(Calendar.DAY_OF_WEEK);
        if (day == Calendar.SUNDAY || day == Calendar.SATURDAY) {
            return true;
        }
        return false;
    }

    public static boolean isWeekEnd(String date) {
        return isWeekEnd(parseCalendar(date));
    }
}

Related

1. getDayOfWeek(String date)
2. getDayOfWeek(String year, String month, String day)
3. getDayOfWeekAbbreviation(int day)
4. getDayOfWeekAbreviated(Date d)
5. getDayOfWeekShortString(Date date)
6. getDayWithWeek(Date date)
7. getENWeekDay()
8. getFirstday_Lastday_Week()
9. getFirstDayOfLastWeek(Date date)