Java中对于日期和时间的复杂操作案例-蒲公英云

Java中对于日期和时间的复杂操作案例

原创港控/mmm° 2024-12-06 03:15 70阅读 0赞

在Java中，日期和时间的处理涉及到类、方法以及一些复杂的API。以下是一个关于处理复杂日期和时间操作的案例：

导入相关库：

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

定义一个函数处理复杂日期：

public LocalDateTime adjustDateRange(LocalDateTime startDate, LocalDateTime endDate, int durationDays) {
 DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HHss");
 // Calculate the adjusted start and end dates
 int totalDays = Duration.between(startDate, endDate).days() + durationDays;
 LocalDateTime adjustedStartDate = startDate.plusTotalDays(totalDays));
 LocalDateTime adjustedEndDate = endDate.minusTotalDays(totalDays));
 // Format for display
 adjustedStartDate = formatter.format(adjustedStartDate));
 adjustedEndDate = formatter.format(adjustedEndDate);
 return adjustedStartDate + " to " + adjustedEndDate;
}

使用示例：

public class Main {
 public static void main(String[] args) {
     LocalDateTime startDate = LocalDateTime.of(2022, 1, 1), LocalTime.of(0, 0));
     LocalDateTime endDate = LocalDateTime.of(2022, 2, 14), LocalTime.of(23, 59));
     int durationDays = 30; // Adjust the duration as needed
     LocalDateTime adjustedStart = adjustDateRange(startDate, endDate, durationDays));
     LocalDateTime adjustedEnd = adjustDateRange(endDate, startDate, -durationDays)); // Adjust by negative duration days
     System.out.println("Adjusted Start Date: " + adjustedStart);
     System.out.println("Adjusted End Date: " + adjustedEnd);
 }
}