ChronoZonedDateTime hashCode() method in Java with Examples

The hashCode() method of a ChronoZonedDateTime interface is used to get the hashcode for this ChronoZonedDateTime. Hashcode is a unique code generated by the JVM at the time of object creation. It can be used to perform some operation on hashing related algorithm like a hashtable, hashmap etc. An object can also be searched with this unique code.

Syntax:

default int hashCode()

Parameters: This method does not take any parameters.

Return value: This method returns an integer value representing a suitable hash code.

Below programs illustrate the hashCode() method:

Program 1:

// Java program to demonstrate
// ChronoZonedDateTime.hashCode() method

import java.time.*;
import java.time.chrono.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a ChronoZonedDateTime object
        ChronoZonedDateTime zoneddatetime
            = ZonedDateTime.parse(
                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        // get hashcode
        int value = zoneddatetime.hashCode();

        // print result
        System.out.println("hashcode:" + value);
    }
}

Output:

hashcode:1966859253

Program 2:

// Java program to demonstrate
// ChronoZonedDateTime.hashCode() method

import java.time.*;
import java.time.chrono.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a ChronoZonedDateTime object
        ChronoZonedDateTime zoneddatetime
            = ZonedDateTime.parse(
                "1918-10-25T23:12:38.543+02:00[Europe/Paris]");

        // get hashcode
        int value = zoneddatetime.hashCode();

        // print result
        System.out.println("hashcode:" + value);
    }
}

Output:

hashcode:1110445649

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#hashCode–