Date hashCode() method in Java with Examples

Last Updated : 07 Nov, 2019

The hashCode() method of Java Date class returns a value which is a hash code for this object.

Syntax:

public int hashCode()

Parameters: The function does not accept any parameter.

Return Value: It returns a hashCode value for this object.

Exception: The function does not throws any exception.

Program below demonstrates the above mentioned function:

// Java code to demonstrate 
// hashCode() function of Date class 
  
import java.util.Date; 
import java.util.Calendar; 
public class GfG { 
    // main method 
    public static void main(String[] args) 
    { 
  
        // creating a Calendar object 
        Calendar c1 = Calendar.getInstance(); 
  
        // set Month 
        // MONTH starts with 0 i.e. ( 0 - Jan) 
        c1.set(Calendar.MONTH, 11); 
  
        // set Date 
        c1.set(Calendar.DATE, 05); 
  
        // set Year 
        c1.set(Calendar.YEAR, 1996); 
  
        // creating a date object with specified time. 
        Date dateOne = c1.getTime(); 
  
        System.out.println("Date: " + dateOne); 
  
        // Prints hash Code 
        System.out.println("HashCode: "
                           + dateOne.hashCode()); 
    } 
} 

Output:

Date: Thu Dec 05 08:22:04 UTC 1996
HashCode: -629399711

// Java code to demonstrate 
// hashCode() function of Date class 
  
import java.util.Date; 
import java.util.Calendar; 
public class GfG { 
    // main method 
    public static void main(String[] args) 
    { 
  
        // creating a Calendar object 
        Calendar c1 = Calendar.getInstance(); 
  
        // set Month 
        // MONTH starts with 0 i.e. ( 0 - Jan) 
        c1.set(Calendar.MONTH, 11); 
  
        // set Date 
        c1.set(Calendar.DATE, 21); 
  
        // set Year 
        c1.set(Calendar.YEAR, 1999); 
  
        // creating a date object with specified time. 
        Date dateOne = c1.getTime(); 
  
        System.out.println("Date: " + dateOne); 
  
        // Prints hash Code 
        System.out.println("HashCode: "
                           + dateOne.hashCode()); 
    } 
} 

Output:

Date: Tue Dec 21 08:22:09 UTC 1999
HashCode: 871724355

DateFormat hashCode() method in Java with Examples

Twinkl Bajaj

Improve

Article Tags :

Practice Tags :

Java

Date hashCode() method in Java with Examples

Similar Reads

Thank You!

What kind of Experience do you want to share?