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Java Date hashCode() Method with Example

Date Class hashCode() method: Here, we are going to learn about the hashCode() method of Date Class with its syntax and example.
Submitted by Preeti Jain, on February 09, 2020

Date Class hashCode() method

  • hashCode() method is available in java.util package.
  • hashCode() method is used to retrieve hash code of this Date object.
  • hashCode() method is a non-static method, it is accessible with class object only and if we try to access the method with 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):

  • It does not accept any parameter.

Return value:

The return type of this method is int, it returns hash code value of this Date object.

Example:

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

import java.util.*;

public class HashCodeOfDate {
    public static void main(String[] args) {
        // create a Date object with dates
        Date this_date = new Date(2016, 8, 20);

        // By using hashCode() method is to return 
        // the hash code of this Date
        int hash_code = this_date.hashCode();

        // Display hash code
        System.out.println("this_date.hashCode(): " + hash_code);
    }
}

Output

this_date.hashCode(): 1556379615






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