localdatetime Duration计算平均

以下是使用Java 8中的LocalDateTime和Duration计算平均时间的示例代码：

import java.time.Duration;
import java.time.LocalDateTime;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        List<LocalDateTime> timestamps = List.of(
                LocalDateTime.of(2021, 10, 1, 10, 30),
                LocalDateTime.of(2021, 10, 2, 11, 45),
                LocalDateTime.of(2021, 10, 3, 12, 0),
                LocalDateTime.of(2021, 10, 4, 9, 15),
                LocalDateTime.of(2021, 10, 5, 14, 30)
        );

        LocalDateTime sum = timestamps.stream()
                .reduce(LocalDateTime.MIN, LocalDateTime::plus);

        LocalDateTime average = sum.dividedBy(timestamps.size());

        System.out.println("Average timestamp: " + average);

        Duration totalDuration = Duration.ZERO;

        for (int i = 0; i < timestamps.size() - 1; i++) {
            Duration duration = Duration.between(timestamps.get(i), timestamps.get(i + 1));
            totalDuration = totalDuration.plus(duration);
        }

        Duration averageDuration = totalDuration.dividedBy(timestamps.size() - 1);

        System.out.println("Average duration between timestamps: " + averageDuration);
    }
}

该示例首先创建了一个本地日期时间列表，然后使用流将它们全部加起来，然后计算平均值。接下来，它计算了时间戳之间的平均持续时间。该过程循环遍历时间戳列表，并计算相邻时间戳之间的持续时间，并将它们全部加起来。最后，计算平均持续时间并输出结果。