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Java Instant Class | hashCode() Method with Example

Instant Class hashCode() method: Here, we are going to learn about the hashCode() method of Instant Class with its syntax and example.
Submitted by Preeti Jain, on May 25, 2020

Instant Class hashCode() method

• hashCode() method is available in java.time package.
• hashCode() method is used to get the hash code value for this Instant.
• hashCode() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• hashCode() method does not throw an exception at the time of returning hash code.

Syntax:

    public int hashCode();

Parameter(s):

• None

Return value:

The return type of this method is int, it retrieves this Instant hash code value.

Example:

// Java program to demonstrate the example 
// of int hashCode() method of Instant

import java.time.*;

public class HashCodeOfInstant {
    public static void main(String args[]) {
        // Instantiates two Instant
        Instant ins1 = Instant.parse("2006-04-03T05:10:15.00Z");
        Instant ins2 = Instant.now();

        // Display ins1,ins2
        System.out.println("Instant ins1 and ins2: ");
        System.out.println("ins1: " + ins1);
        System.out.println("ins2: " + ins2);

        System.out.println();

        // Here, this method returns the
        // hash code value for this Instant 
        // ins1
        int hash_code = ins1.hashCode();

        // Display hash_code
        System.out.println("ins1.hashCode(): " + hash_code);

        // Here, this method returns the 
        // hash code value for this Instant 
        // ins2
        hash_code = ins2.hashCode();

        // Display hash_code
        System.out.println("ins2.hashCode(): " + hash_code);
    }
}

Output

Instant ins1 and ins2: 
ins1: 2006-04-03T05:10:15Z
ins2: 2020-05-25T22:31:42.903028Z

ins1.hashCode(): 1144041015
ins2.hashCode(): 400233646