计算天数

从键盘输入一个日期，格式为yyyy-M-d
要求计算该日期与1949年10月1日距离多少天
例如：
用户输入了：1949-10-2
程序输出：1
用户输入了：1949-11-1
程序输出：31

import java.util.Scanner;
public class countDays {
    public static int dayOfYear[]={365,366};//平年365天,闰年366天
    public static int dayOfMonth[][]={
            {0,31,28,31,30,31,30,31,31,30,31,30,31},
            {0,31,29,31,30,31,30,31,31,30,31,30,31}
    };
    public static int dayOfYearIndex(int year){ //根据是否是闰年来给出dayOfYear的数组的下标
        if((year%4==0&&year%100!=0)||year%400==0){
            return 1;
        }
        return 0;
    }
    public static int dayApartFromTheBrginOfYear(int year,int month,int day){//计算month月day日是year年的第几天
        int days=day;
        for (int i = 1; i < month; i++) {
            days+=dayOfMonth[dayOfYearIndex(year)][i];
        }
        return days;
    }
    public static int apartDays(String startDayString,String endDayString ) {
        String s1[]=startDayString.split("-");
        String s2[]=endDayString.split("-");
        int days=0;
        int flag;
        int startYear=Integer.parseInt(s1[0]);
        int endYear=Integer.parseInt(s2[0]);
        int startMonth=Integer.parseInt(s1[1]);
        int endMonth=Integer.parseInt(s2[1]);
        int startDay=Integer.parseInt(s1[2]);
        int endDay=Integer.parseInt(s2[2]);
        for (int i = startYear; i < endYear; i++) {
            days+=dayOfYear[dayOfYearIndex(i)];
        }
        days+=dayApartFromTheBrginOfYear(endYear,endMonth,endDay);
        days-=dayApartFromTheBrginOfYear(startYear,startMonth,startDay);
        return days;
    }
    public static void main(String[] args)  {
        Scanner scanner=new Scanner(System.in);
        String startDayString="1949-10-01";
        String endDayString=scanner.nextLine();
        System.out.println(apartDays(startDayString, endDayString));
    }
}