ZoneOffset getAvailableZoneIds() method in Java with Examples

The getAvailableZoneIds() method of the ZoneOffset class of java.time package is used to get the set of available zone IDs. This set includes all available region-based IDs. The ID can be passed to of(String) to create a ZoneId. The set of zone IDs can increase over time, although in a typical application the set of IDs is fixed.

Syntax:

public static Set getAvailableZoneIds()

Parameters: This method does not accepts any parameter.

Return value: This method returns Set which are a modifiable copy of the set of zone IDs.

Below examples illustrate the ZoneOffset.getAvailableZoneIds() method:

Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to illustrate getAvailableZoneIds() method
  
import java.time.*;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the ZoneOffset instance
        ZoneOffset zoneOffset
            = ZoneOffset.of("+05:30");
  
        // get available zones
        // using getAvailableZoneIds()
        Set<String> zoneIds
            = zoneOffset.getAvailableZoneIds();
  
        // print first record
        System.out.println("First ZoneId in list:"
                           + zoneIds.iterator().next());
    }
}

chevron_right


Output:

First ZoneId in list:Asia/Aden

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to illustrate getAvailableZoneIds() method
  
import java.time.*;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the ZoneOffset instance
        ZoneOffset zoneOffset
            = ZoneOffset.of("Z");
  
        // get available zones
        // using getAvailableZoneIds()
        Set<String> zoneIds
            = zoneOffset.getAvailableZoneIds();
  
        // print first record
        System.out.println("First ZoneId in list:"
                           + zoneIds.iterator().next());
    }
}

chevron_right


Output:

First ZoneId in list:Asia/Aden

Reference: Oracle Doc



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.