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();
}
} }