DateTime.GetHashCode() Method in C#

This method is used to return the hash code for this instance.

Syntax: public override int GetHashCode ();

Return Value: This method returns a 32-bit signed integer hash code.



Below programs illustrate the use of DateTime.GetHashCode() Method:

Example 1:

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// C# program to demonstrate the
// DateTime.GetHashCode()
// Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // creating object of DateTime
        DateTime date = new DateTime(2010, 1,
                                 1, 4, 0, 15);
  
        // getting hashcode from DateTime
        // using GetHashCode() method;
        int value = date.GetHashCode();
  
        // Display the hashcode
        Console.WriteLine("hashcode is {0}", value);
    }
}

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Output:

hashcode is 103491886

Example 2:

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// C# program to demonstrate the
// DateTime.GetHashCode()
// Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // calling check() method
        check(new DateTime(2010, 1,
                     3, 4, 0, 15));
  
        check(new DateTime(2010, 1,
                     5, 4, 0, 15));
    }
  
    public static void check(DateTime date)
    {
  
        // getting HashCode from DateTime
        // using GetHashCode() method;
        int value = date.GetHashCode();
  
        // Display the ShortTime
        Console.WriteLine("HashCode of {0} is {1}",
                                      date, value);
    }
}

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Output:

HashCode of 01/03/2010 04:00:15 is 1802939328
HashCode of 01/05/2010 04:00:15 is -1337841070

Reference:



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