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Java 8 for Experienced Developers: Lambdas, Stream API & Beyond

ZonedDateTime

Explore how to create and manipulate ZonedDateTime objects using Java 8 Time API. Understand how to work with ZoneId, retrieve date and time components, and modify date or time values with various methods. Gain practical skills to handle time zone-aware date and time in your Java applications.

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The ZonedDateTime class represents a date and a time with time zone information. While creating an instance of ZonedDateTime, we need to provide a ZoneId. The ZoneId is an identifier used to represent different zones. Before we proceed towards ZonedDateTime, let’s look at ZoneId briefly.

The below example shows how to get a ZoneId for a given Zone.

Java
import java.time.ZoneId;

import java.util.Set;



class DateTimeDemo {

    public static void main(String args[]) {



        //Fetching the Zoneid for given Zone.

        ZoneId zoneId = ZoneId.of("America/Marigot");

        System.out.println("Zone Id " + zoneId);



        //Fetching a Set of all Zoneids

        Set<String> zoneIdList = ZoneId.getAvailableZoneIds();



        for (String zone : zoneIdList) {

            System.out.println(zone);

        }

    }

}

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