java - 在java中打印2个日期之间的所有日期，特殊情况

Question

这个问题已经有答案了:

“no suitable method found for between(Date, Date)" when trying to calculate difference in days between two dates (2 个回答)

how to get a list of dates between two dates in java (23 个回答)

已关闭 3 年前。

我从控制台读取了 2 个字符串，格式为 - yyyy-mm-dd ，我想打印它们之间的天数。但是，当我尝试打印结果时，出现了一个奇怪的错误

- Error:(12, 43) java: no suitable method found for between(java.util.Date,java.util.Date)
    method java.time.temporal.TemporalUnit.between(java.time.temporal.Temporal,java.time.temporal.Temporal) is not applicable
      (argument mismatch; java.util.Date cannot be converted to java.time.temporal.Temporal)
    method java.time.temporal.ChronoUnit.between(java.time.temporal.Temporal,java.time.temporal.Temporal) is not applicable
      (argument mismatch; java.util.Date cannot be converted to java.time.temporal.Temporal)

我不明白为什么？

import java.time.temporal.ChronoUnit;
import java.util.Date;
import java.util.Scanner;

public class Tester {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String a = sc.nextLine(); // for example  - 2017-02-01
        String b = sc.nextLine(); // 2017-10-05
        Date d1 = new Date(String.format(a, "yyyy-mm-dd"));
        Date d2 = new Date(String.format(b, "yyyy-mm-dd"));
        System.out.println(ChronoUnit.DAYS.between(d1,d2));
    }
}

Answer 1

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Scanner;

public class StackOverFlow {
    public static void main(String[] args) throws ParseException {
        Scanner sc = new Scanner(System.in);
        String a = sc.nextLine(); // for example  - 2017-02-01
        String b = sc.nextLine(); // 2017-10-05
        List<Date> datesInRange = new ArrayList<>();
        Date d1 = new SimpleDateFormat("yyyy-MM-dd").parse(a);
        Date d2 = new SimpleDateFormat("yyyy-MM-dd").parse(b);
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(d1);

        Calendar endCalendar = new GregorianCalendar();
        endCalendar.setTime(d2);

        while (calendar.before(endCalendar)) {
            Date result = calendar.getTime();
            datesInRange.add(result);
            calendar.add(Calendar.DATE, 1);
        }
        System.out.println(datesInRange);

    }
}