Duration、Period、ChronoUnit类

package DurationPeriodChronoUnitExercise20240717;
import java.time.*;
import java.time.temporal.ChronoUnit;// ChronoUnit是用来得到时间间隔的类，涵盖了所有时间的单位，Duration和Period用法和其一致，只是单位不同//单位是s、ms、ns  单位是年月日
public class DurationPeriodChronoUnitExercise {public static void main(String[] args) {ZonedDateTime today = Instant.now().atZone(ZoneId.of("Asia/Chongqing"));System.out.println(today);// 生日时间LocalDateTime birthDate = LocalDateTime.of(2000, 1, 1,0, 0, 0);System.out.println(birthDate);// 调用方法得到相差的时间System.out.println("相差的年数:" + ChronoUnit.YEARS.between(birthDate, today));System.out.println("相差的月数:" + ChronoUnit.MONTHS.between(birthDate, today));System.out.println("相差的周数:" + ChronoUnit.WEEKS.between(birthDate, today));System.out.println("相差的天数:" + ChronoUnit.DAYS.between(birthDate, today));System.out.println("相差的时数:" + ChronoUnit.HOURS.between(birthDate, today));System.out.println("相差的分数:" + ChronoUnit.MINUTES.between(birthDate, today));System.out.println("相差的秒数:" + ChronoUnit.SECONDS.between(birthDate, today));System.out.println("相差的毫秒数:" + ChronoUnit.MILLIS.between(birthDate, today));System.out.println("相差的微秒数:" + ChronoUnit.MICROS.between(birthDate, today));System.out.println("相差的纳秒数:" + ChronoUnit.NANOS.between(birthDate, today));System.out.println("相差的半天数:" + ChronoUnit.HALF_DAYS.between(birthDate, today));System.out.println("相差的十年数:" + ChronoUnit.DECADES.between(birthDate, today));System.out.println("相差的世纪(百年)数:" + ChronoUnit.CENTURIES.between(birthDate, today));System.out.println("相差的千年数:" + ChronoUnit.MILLENNIA.between(birthDate, today));System.out.println("相差的纪元数:" + ChronoUnit.ERAS.between(birthDate, today));}
}