Java Data Type - 如何从时区字符串ID创建时区

import java.time.Clock;
import java.time.ZoneId;

public class Main {
  public static void main(String[] args) {
    // Time Zone
    ZoneId zone = ZoneId.systemDefault();
    System.out.println(Clock.system(zone));
    System.out.println(Clock.system(ZoneId.of("Europe/Berlin")));

  }
}