java.time.ZoneId.of() Method Example

Description

The java.time.ZoneId.of(String zoneId, Map<String,String> aliasMap) method obtains an instance of ZoneId from an ID ensuring that the ID is valid and available for use.

Declaration

Following is the declaration for java.time.ZoneId.of(String zoneId, Map<String,String> aliasMap) method.

public static ZoneId of(String zoneId, Map<String,String> aliasMap)

Parameters

• zoneId − the time-zone ID, not null.

• aliasMap − a map of alias zone IDs (typically abbreviations) to real zone IDs, not null.

Return Value

the zone ID, not null

Exceptions

• DateTimeException − if the zone ID has an invalid format

• ZoneRulesException − if the zone ID is a region ID that cannot be found.

Example

The following example shows the usage of java.time.ZoneId.of(String zoneId, Map<String,String> aliasMap) method.

package com.tutorialspoint;

import java.time.ZoneId;
import java.util.HashMap;

public class ZoneIdDemo {
   public static void main(String[] args) {
 
      ZoneId zone = ZoneId.of("Z", new HashMap<String, String>());
      System.out.println(zone);  
   }
}

Let us compile and run the above program, this will produce the following result −

Z