计算工作日之后N天的日期
1、假期实体类：
package com.smics.date; import java.io.Serializable; import java.util.Date; public class Vacation implements Serializable { private static final long serialVersionUID = 1L; private Date date; private int days; public Date getDate() { return date; } public void setDate(Date date) { this.date = date; } public int getDays() { return days; } public void setDays(int days) { this.days = days; } }
2、日期之间的假期数目
package com.smics.date; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.Scanner; @SuppressWarnings({"rawtypes","unchecked"}) public class DateToDate { /*************************************************************************** * 在beginDate和endDate之间所包含假期的天数，若不包含则返回0； 假期和周末分别进行单独考虑！ * * @param list * @param beginDate * @param endDate * @return */ public static int getContainVacation(List list, Date beginDate, Date endDate) { int days = 0; Calendar begincal = new GregorianCalendar(); Calendar endcal = new GregorianCalendar(); begincal.setTime(beginDate); endcal.setTime(endDate); for (int i = 0; i < list.size(); i++) { System.out.println("执行到这里了！"); Vacation vac = (Vacation) list.get(i); Date tempDate = vac.getDate(); Calendar tempcal = new GregorianCalendar(); tempcal.setTime(tempDate); int tempDays = vac.getDays(); int tempDay = tempcal.get(Calendar.DAY_OF_YEAR); int dd = 0; if ((tempDate.after(endDate)) || (tempDate.before(beginDate))) { System.out.println(tempDate.after(endDate)); System.out.println("执行到这里了吗？？？！"); continue; } else { System.out.println("应该执行到这里了！@"); while (tempDay < endcal.get(Calendar.DAY_OF_YEAR) && dd < tempDays) { System.out.println("符合条件吗？？？？"); // tempcal.set(Calendar.DAY_OF_MONTH,tempDay);//原来是你在作怪！ // 节假日和周末可能有重叠的情况！ if ((tempcal.get(Calendar.DAY_OF_WEEK)) == 2 || (tempcal.get(Calendar.DAY_OF_WEEK) == 1)) { System.out.println((tempcal.get(Calendar.DAY_OF_WEEK)) == 2); System.out.println((tempcal.get(Calendar.DAY_OF_WEEK) == 1)); System.out.println("节假日和周末重叠的情况！" + tempcal.get(Calendar.DAY_OF_WEEK)); days--; } tempcal.add(Calendar.DAY_OF_WEEK, 1); dd++;// 计数器自增，不能超出法定的假期数。 days++;// 符合这两种条件的自增。看一下有多少天！ tempDay++;// 法定假日自增，不能超出endDate的日期数！ } } } // 单独考虑周末的情况！不知道哪一个数字代表周六，周日！ System.out.println("周末！"); for (int j = begincal.get(Calendar.DAY_OF_YEAR); j <= endcal .get(Calendar.DAY_OF_YEAR); j++) { if (begincal.get(Calendar.DAY_OF_WEEK) == 7 || begincal.get(Calendar.DAY_OF_WEEK) == 1) { System.out.println("周末判断！"); days++; } begincal.add(Calendar.DAY_OF_YEAR, 1); } return days; } /*************************************************************************** * 从文件中读取字符串到集合中，然后返回集合。 * * @param file * @return * @throws Exception */ public static List getDateFromFile(File file) throws Exception { List list = new ArrayList(); BufferedReader breader = new BufferedReader(new FileReader(file)); String str = ""; while ((str = breader.readLine()) != null) { Vacation vac = DateToDate.divideStr(str); list.add(vac); } System.out.println(list); return list; } /*************************************************************************** * 将字符串最终切割成一个假期对象！ * * @param str * @return * @throws ParseException */ public static Vacation divideStr(String str) throws ParseException { Vacation vac = new Vacation(); String[] array = str.split(","); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date date = format.parse(array[0]); int days = Integer.parseInt(array[1]); vac.setDate(date); vac.setDays(days); return vac; } /*************************************************************************** * 输入的前后两天之间的相差的天数！ * * @param beginDate * @param endDate * @return */ public static int getDays(Date beginDate, Date endDate) { long days = 0; try { if (beginDate.compareTo(endDate) > 0) { throw new IllegalArgumentException("日期输入不正确!"); } days = (endDate.getTime() - beginDate.getTime()) / (1000 * 60 * 60 * 24); } catch (Exception e) { e.getStackTrace(); } return (int) days; } /*** * 从键盘标准输入两个日期！ * * @return */ public static String[] getInDate() { System.out.println("请输入开始和结束日期！格式如下：yyyy-MM-dd"); Scanner scanner = new Scanner(System.in); String str = scanner.nextLine(); String[] array = str.split(","); return array; } public static void main(String args[]) { String[] str = DateToDate.getInDate(); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); try { Date beginDate = format.parse(str[0]); Date endDate = format.parse(str[1]); File file = new File("D:\\java\\file\\jinxing.txt"); List list = DateToDate.getDateFromFile(file); int days = DateToDate.getContainVacation(list, beginDate, endDate); System.out.println("总共的节假日包括周末：" + days); int allday = DateToDate.getDays(beginDate, endDate); System.out.println("总共的天数：" + allday); System.out.println("总共的工作日为：" + (allday - days)); } catch (Exception e) { e.getStackTrace(); } } }
3、计算工作日之后N天的日期
package com.smics.date; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.Scanner; /** * Gets the date of N days after the specified date * @package com.smics.date * @file WorkDate.java * @author E047352 * @date 2018-12-11 PM 05:11:50 * @version V 1.0 */ public class WorkDate { /*************************************************************************** * Calculate the date after the working day by the given date and working day! * * @param beginDate * @param workDays */ public static Date getDate(Date beginDate, int workDays, List<Vacation> list) { Date endDate = beginDate; Calendar calBegin = Calendar.getInstance(); calBegin.setTime(beginDate); int count = 1; Calendar calFile = Calendar.getInstance(); while (count <= workDays) { int tempBeginWeek = calBegin.get(Calendar.DAY_OF_WEEK); if (tempBeginWeek < 7 && tempBeginWeek > 1) { // Number of days to cycle its holidays! for (int i = 0; i < list.size(); i++) { //System.out.println("It should be recycled at least twice!!"); Vacation vac = (Vacation) list.get(i); Date fileDate = vac.getDate(); calFile.setTime(fileDate); int fileDay = vac.getDays(); int tempFileDays = calFile.get(Calendar.DAY_OF_YEAR);// The Days of the Year //System.out.println("Which day of the year is it:" + tempFileDays); //System.out.println("What day is today:" + tempBeginWeek); for (int j = tempFileDays; j < (tempFileDays + fileDay); j++) { if (calBegin.get(Calendar.DAY_OF_YEAR) == j) { count--; } } } count++; } calBegin.add(Calendar.DATE, 1); } endDate = calBegin.getTime(); return endDate; } /*************************************************************************** * Get holidays from files and return to a collection! * * @param file * @return * @throws Exception */ public static List<Vacation> getListVacation(File file) throws Exception { List<Vacation> list = new ArrayList<Vacation>(); list = (List<Vacation>) WorkDate.getVacationDateFromFile(file); return list; } /*************************************************************************** * Standard input, input start date and workday parameters from the screen!! * * @return */ public static String[] getIn() { System.out.println("Please enter the start date and workday parameter!!"); String str = ""; Scanner scanner = new Scanner(System.in); str = scanner.nextLine(); String[] array = str.split(","); while (true) { if (array.length <= 1) { System.out.println("Please enter the required parameters correctly!"); str = scanner.nextLine(); array = str.split(","); } else { break; } } return array; } /*************************************************************************** * Split the string and return a Vacation object! * * @param str * @return * @throws ParseException */ public static Vacation divideStr(String[] array) throws ParseException { Vacation vac = new Vacation(); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = format.parse(array[0]); vac.setDate(date); int days = Integer.parseInt(array[1]); vac.setDays(days); return vac; } /** * Read the string from the file into the collection, and then return to the collection. * * @param file * @return * @throws Exception */ public static List<Vacation> getVacationDateFromFile(File file) throws Exception { List<Vacation> list = new ArrayList<Vacation>(); BufferedReader breader = new BufferedReader(new FileReader(file)); String str = ""; while ((str = breader.readLine()) != null) { Vacation vac = DateToDate.divideStr(str); list.add(vac); } return list; } public static void main(String args[]) { try { File file = new File("D:\\java\\file\\jinxing.txt"); List<Vacation> list = WorkDate.getListVacation(file); Vacation vac = WorkDate.divideStr(WorkDate.getIn()); Date date = WorkDate.getDate(vac.getDate(), vac.getDays(), list); System.out.println("Is this here?"); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String strDate = format.format(date); System.out.println("Dates after "+vac.getDays()+" working days are:" + strDate); } catch (Exception e) { e.printStackTrace(); } } }
