Java如何准确计算两个日期之间的天数？

import java.time.LocalDate;
import java.time.DateTimeException;
import java.time.temporal.ChronoUnit;

public class DaysBetweenDates {

    public static void main(String[] args) {
        try {
            // Get the first date from the user
            System.out.print("Enter the first date (dd MM yyyy): ");
            String date1Str = new Scanner(System.in).nextLine();

            // Get the second date from the user
            System.out.print("Enter the second date (dd MM yyyy): ");
            String date2Str = new Scanner(System.in).nextLine();

            // Parse the dates into LocalDate objects
            LocalDate date1 = LocalDate.parse(date1Str);
            LocalDate date2 = LocalDate.parse(date2Str);

            // Calculate the days between the two dates
            long daysBetween = ChronoUnit.DAYS.between(date1, date2);

            // Print the result
            System.out.println("Days between " + date1 + " and " + date2 + ": " + daysBetween);

        } catch (DateTimeException e) {
            System.out.println("Invalid date format. Please enter dates in the format dd MM yyyy.");
        }
    }
}