ZoneId hashCode() method in Java with Examples

The hashCode() method of the ZoneId class in Java is used to return unique hashcode for this ZoneId.

Syntax:

public int hashCode(Object obj)

Parameters: This method accepts nothing.

Return value: This method returns an int which represents the hashCode.

Below programs illustrate the hashCode() method:
Program 1:

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// Java program to demonstrate
// ZoneId.hashCode() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ZoneId object
        ZoneId zoneId
            = ZoneId.of("Europe/Paris");
  
        // get and print hashcode
        System.out.println("hashcode: "
                           + zoneId.hashCode());
    }
}

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Output:

hashcode: -672549154

Program 2:

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// Java program to demonstrate
// ZoneId.hashCode() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ZoneId object
        ZoneId zoneId
            = ZoneId.of("Asia/Calcutta");
  
        // get and print hashcode
        System.out.println("hashcode: "
                           + zoneId.hashCode());
    }
}

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Output:

hashcode: -681304890

Reference:
https://docs.oracle.com/javase/10/docs/api/java/time/ZoneId.html#hashCode()



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