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C# program to demonstrate the use of CompareTo() method of Enum class

Here, we are going to demonstrate the use of CompareTo() method of Enum class in C#.Net.
Submitted by Nidhi, on April 15, 2021

Here, we will learn about the CompareTo() method of Enum Class. This method is used to compare instances with specific enum objects.

Syntax:

    int Enum.CompareTo(Enum obj);

Parameter:

  • obj : It is an object that will compare with the current instance of an enum.

Return value:

This method returns an integer value that specifies the comparison of two enum objects.

  • 0 : Both are equal
  • >0 : Current object is greater than the specified object.
  • <0 : Current object is less than the specified object.

Exceptions:

  • System.ArgumentException
  • System.InvalidOperationException
  • System.NullReferenceException

Program:

The source code to demonstrate the use of CompareTo() method of Enum class is given below. The given program is compiled and executed successfully.

using System;

class Sample
{
    enum Color { RED=0,GREEN=1,YELLOW=3,WHITE=4,BLACK=5};

    //Entry point of Program
    static public void Main()
    {
        Color firstColor    = Color.RED;
        Color secondColor   = Color.WHITE;
        Color thirdColor    = Color.BLACK;


        if (firstColor.CompareTo(secondColor) > 0)
            Console.WriteLine("FirstColor is greater than SecondColor");
        else
            Console.WriteLine("SecondColor is greater than FirstColor");

        if (secondColor.CompareTo(thirdColor) > 0)
            Console.WriteLine("SecondColor is greater than ThirdColor");
        else
            Console.WriteLine("ThirdColor is greater than SecondColor");
    }
}

Output:

SecondColor is greater than FirstColor
ThirdColor is greater than SecondColor
Press any key to continue . . .

C# Enum Class Programs »


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