Java 了解ZoneId的时间更改规则（ZoneRules）

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import java.time.LocalDateTime;

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import java.time.ZoneId;

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import java.time.ZoneOffset;// 来自 时   代     Java  公  众  号 - nowjava.com

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import java.time.zone.ZoneOffsetTransition;

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import java.time.zone.ZoneRules;

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import java.util.List;

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public class Main {

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  public static void main(String[] args) {

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    LocalDateTime now = LocalDateTime.now();

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    System.out.println("Current Date Time: " + now);

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    ZoneId fixedZoneId = ZoneId.of("+06:00");

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    ZoneId bdDhaka = ZoneId.of("Asia/Dhaka");

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    ZoneId usChicago = ZoneId.of("America/Chicago");

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    // Print some zone rules for ZoneIds

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    printDetails(fixedZoneId, now);

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    printDetails(bdDhaka, now);

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    printDetails(usChicago, now);

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  }

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  /*

   from n  o  w  j  a  v  a . c o m 

  */

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  public static void printDetails(ZoneId zoneId, LocalDateTime now) {

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    System.out.println("Zone ID: " + zoneId.getId());

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    ZoneRules rules = zoneId.getRules();

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    boolean isFixedOffset = rules.isFixedOffset();

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    System.out.println("isFixedOffset(): " + isFixedOffset);

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