MonthDay hashCode() method in Java with Examples

hashCode() method of the MonthDay class used to get hashCode for this MonthDay. The hashcode is always the same if the object doesn’t change. Hashcode is a unique code generated by the JVM at 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 its unique code (hashcode). 

Syntax:

public int hashCode()

Parameters: This method did not accepts any parameter. 

Return value: This method returns a suitable hash code. 

Below programs illustrate the hashCode() method: 

Program 1:

Java

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

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {
        // create a MonthDay object
        MonthDay month = MonthDay.parse("--10-12");

        // print hashcode
        System.out.println("hashCode"
                           + " of YearMonth: "
                           + month.hashCode());
    }
}

Output:

hashCode of YearMonth: 652

Program 2:

Java

// Java program to demonstrate
// MonthDay.hashcode() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {
        // create a MonthDay object
        MonthDay month = MonthDay.parse("--08-31");

        // print hashcode
        System.out.println("hashCode"
                           + " of YearMonth: "
                           + month.hashCode());
    }
}

Output:

hashCode of YearMonth: 543

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