Java 日历获取工作日不起作用

Question

我试图让它输出 2010 年 5 月 16 日(星期日)和 2010 年 5 月 25 日(星期二)之间的所有工作日(星期一至星期五)。正确的输出应该是 17,18,19,20,21,24,25。但是，我得到的结果是 17,18,19,20,21,17,18,19。其他方法只是分割日期所在的字符串

import java.util.*;
public class test
{
    public static void main(String[] args) {

        String startTime = "5/16/2010 11:44 AM";
        String endTime = "5/25/2010 12:00 PM";
        GregorianCalendar startCal = new GregorianCalendar();
        startCal.setLenient(true);
        String[] start = splitString(startTime);   
        //this sets year, month day
        startCal.set(Integer.parseInt(start[2]),Integer.parseInt(start[0])-1,Integer.parseInt(start[1]));
        startCal.set(GregorianCalendar.HOUR, Integer.parseInt(start[3]));
        startCal.set(GregorianCalendar.MINUTE, Integer.parseInt(start[4]));
        if (start[5].equalsIgnoreCase("AM")) { startCal.set(GregorianCalendar.AM_PM, 0); }
        else { startCal.set(GregorianCalendar.AM_PM, 1); }

        GregorianCalendar endCal = new GregorianCalendar();
        endCal.setLenient(true);
        String[] end = splitString(endTime);
        endCal.set(Integer.parseInt(end[2]),Integer.parseInt(end[0])-1,Integer.parseInt(end[1]));
        endCal.set(GregorianCalendar.HOUR, Integer.parseInt(end[3]));
        endCal.set(GregorianCalendar.MINUTE, Integer.parseInt(end[4]));
        if (end[5].equalsIgnoreCase("AM")) { endCal.set(GregorianCalendar.AM_PM, 0); }
        else { endCal.set(GregorianCalendar.AM_PM, 1); }


        for (int i = startCal.get(Calendar.DATE); i < endCal.get(Calendar.DATE); i++)
        {
            startCal.set(Calendar.DATE, i);
            startCal.set(Calendar.DAY_OF_WEEK, i);
            if (startCal.get(Calendar.DAY_OF_WEEK) == Calendar.MONDAY || startCal.get(Calendar.DAY_OF_WEEK) == Calendar.TUESDAY || startCal.get(Calendar.DAY_OF_WEEK) == Calendar.WEDNESDAY || startCal.get(Calendar.DAY_OF_WEEK) == Calendar.THURSDAY || startCal.get(Calendar.DAY_OF_WEEK) == Calendar.FRIDAY)
            {
                System.out.println("\t" + startCal.get(Calendar.DATE));
            }
        }
    }

    private static String[] splitDate(String date)
    {
        String[] temp1 = date.split(" "); // split by space
        String[] temp2 = temp1[0].split("/"); // split by /
        //5/21/2010 10:00 AM
        return temp2; // return 5 21 2010 in one array
    }

    private static String[] splitTime(String date)
    {
        String[] temp1 = date.split(" "); // split by space
        String[] temp2 = temp1[1].split(":"); // split by :
        //5/21/2010 10:00 AM
        String[] temp3 = {temp2[0], temp2[1], temp1[2]};
        return temp3; // return 10 00 AM in one array
    }

    private static String[] splitString(String date)
    {
        String[] temp1 = splitDate(date);
        String[] temp2 = splitTime(date);
        String[] temp3 = new String[6];
        return dateFill(temp3, temp2[0], temp2[1], temp2[2], temp1[0], temp1[1], temp1[2]);
    }

    private static String[] dateFill(String[] date, String hours, String minutes, String ampm, String month, String day, String year) {
        date[0] = month;
        date[1] = day;
        date[2] = year;
        date[3] = hours;
        date[4] = minutes;
        date[5] = ampm;
        return date;
    }

    private String dateString(String[] date) {
        //return month+" "+day+", "+year+" "+hours+":"+minutes+" "+ampm
        //5/21/2010 10:00 AM
        return date[3]+"/"+date[4]+"/ "+date[5]+" "+date[0]+":"+date[1]+" "+date[2];
    }
}

Answer 1

startCal.set(Calendar.DAY_OF_WEEK, i); 每 7 个循环将翻转一次日期。