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Java LocalDate Class | hashCode() Method with Example

LocalDate Class hashCode() method: Here, we are going to learn about the hashCode() method of LocalDate Class with its syntax and example.
Submitted by Preeti Jain, on May 30, 2020

LocalDate Class hashCode() method

• hashCode() method is available in java.time package.
• hashCode() method is used to get the hash code value for this LocalDate object.
• 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 LocalDate hash code value.

Example:

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

import java.time.*;
public class hashCodeOfLocalDate {
    public static void main(String args[]) {

        // Instantiates two LocalDate
        LocalDate l_da1 = LocalDate.parse("2007-04-04");
        LocalDate l_da2 = LocalDate.now();

        // Display l_da1,l_da2
        System.out.println("LocalDate l_da1 and l_da2: ");
        System.out.println("l_da1: " + l_da1);
        System.out.println("l_da2: " + l_da2);

        System.out.println();

        // Here, this method returns the
        // hash code value for this date 
        // object l_da1
        int hash_code = l_da1.hashCode();

        // Display hash_code
        System.out.println("l_da1.hashCode(): " + hash_code);

        // Here, this method returns the 
        // hash code value for this date
        // object l_da2
        hash_code = l_da2.hashCode();

        // Display hash_code
        System.out.println("l_da2.hashCode(): " + hash_code);
    }
}

Output

LocalDate l_da1 and l_da2: 
l_da1: 2007-04-04
l_da2: 2020-05-30

l_da1.hashCode(): 4110596
l_da2.hashCode(): 4137310