工作日计算代码,Java代码库,德仔网

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【Java】工作日计算
作者:黄劼 / 发布于2013/9/10/ 503

	package com.baosight.holidayutils;

	import java.io.IOException;
	import java.text.NumberFormat;
	import java.util.Calendar;

	/**
	* Created with IntelliJ IDEA.
	* User: SaintKnight
	* Date: 13-9-9
	* Time: 下午1:11
	* Creator:Huang Jie
	* To change this template use File | Settings | File Templates.
	*/
	public class HolidayUtils {

	 private static final String SOLAR[] = {"0101", "0404", "0501", "1001", "1002", "1003"};
	 private static final String LUNAR[] = {"0101", "0102", "0103", "0505", "0815"};


	 private final static NumberFormat NumFmt = NumberFormat.getInstance();

	 static {
	 NumFmt.setMaximumFractionDigits(0);
	 NumFmt.setMinimumIntegerDigits(2);
	 }

	 public static Boolean isHoliday(Calendar cal) {
	 long[] ds = LunarCalendar.get(cal);
	 String nongli = NumFmt.format(ds[1]) + NumFmt.format(ds[2]);
	 String yangli = NumFmt.format(cal.get(Calendar.MONTH) + 1) +
	 NumFmt.format(cal.get(Calendar.DATE));
	 Boolean holiday = false;
	 //没有周节日放假，故而删除，2013年9月9日14:03:05
	// //周节日
	// String week = NumFmt.format(cal.get(Calendar.MONTH) + 1) +
	// cal.get(Calendar.DAY_OF_WEEK_IN_MONTH) +
	// (cal.get(Calendar.DAY_OF_WEEK) - 1);
	// holiday = iniFile.getItemValue("WEEK", week);
	// if (holiday != null)
	// return holiday;

	 //阳历
	 if (isInThoseDays(SOLAR, yangli)) {
	 holiday = true;
	 }


	 //阴历
	 if (isInThoseDays(LUNAR, nongli)) {
	 holiday = true;
	 }

	
	 //双休
	 if (cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
	 holiday = true;
	 }

	 return holiday;
	 }

	 private static boolean isInThoseDays(String[] holidays, String theDay) {
	 boolean flag = false;
	 for (String holiday : holidays) {
	 if (holiday.equals(theDay)) {
	 flag = true;
	 return flag;
	 }
	 }
	 return flag;
	 }

	 public static int numberOfWorkdays(Calendar startDate, Calendar endDate) {
	 int numberOfWorkdays = 0;
	 for (; startDate.before(endDate); startDate.add(Calendar.DAY_OF_YEAR, 1)){
	 if (isHoliday(startDate))
	 numberOfWorkdays++;
	 }
	 return numberOfWorkdays;
	 }

	 public static void main(String[] args) throws IOException {

	 Calendar startDate = Calendar.getInstance();
	 Calendar endDate = Calendar.getInstance();
	 endDate.add(Calendar.DAY_OF_YEAR,20);
	 int num = HolidayUtils.numberOfWorkdays(startDate,endDate);
	 System.out.println(num);
	 }

	}
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