Java Calendar hashCode() Method

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Description

The Java Calendar hashCode() method returns a hash code for this calendar object.

Declaration

Following is the declaration for java.util.Calendar.hashCode() method

public int hashCode()

Parameters

NA

Return Value

The method returns a hash code value for this calendar object.

Exception

NA

Getting HashCode of Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar hashCode() method. We're creating an instance of a Calendar of current date using getInstance() method and printing the date and time using getTime() method and hashcode using hashCode() method.

package com.tutorialspoint;

import java.util.Calendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar    
      Calendar cal = Calendar.getInstance();

      // print the time
      System.out.println("Date And Time Is: " + cal.getTime());
	  
      // print the hashcode
      System.out.println("HashCode Is: " + cal.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Date And Time Is: Mon Sep 26 20:13:01 IST 2022
HashCode Is: -1942629770

Getting HashCode of Current Dated GregorianCalendar Instance Example

The following example shows the usage of Java Calendar hashCode() method. We're creating an instance of a Calendar of current date using GregorianCalendar() method and printing the date and time using getTime() method and hashcode using hashCode() method.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar    
      Calendar cal = new GregorianCalendar();

      // print the time
      System.out.println("Date And Time Is: " + cal.getTime());

      // print the hashcode
      System.out.println("HashCode Is: " + cal.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Date And Time Is: Mon Sep 26 20:12:40 IST 2022
HashCode Is: -1942650517

Getting HashCode of Given Dated GregorianCalendar Instance Example

The following example shows the usage of Java Calendar hashCode() method. We're creating an instance of a Calendar of a particular date using GregorianCalendar() method and printing the date and time using getTime() method and hashcode using hashCode() method.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar    
      Calendar cal = new GregorianCalendar(2025,8,26);

      // print the time
      System.out.println("Date And Time Is: " + cal.getTime());
	  
      // print the hashcode
      System.out.println("HashCode Is: " + cal.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Date And Time Is: Fri Sep 26 00:00:00 IST 2025
HashCode Is: 1951802754