C# Enumerations (Enums) – Definition, Example, and Usage

C# Enumerations

Enumerations, or enums, let you define a fixed set of named constants in C#. They’re ideal for representing discrete values such as days of the week, months, or status codes.

Below we walk through a simple, real‑world example that shows how to declare an enum, assign values, and use it in your code.

using System;

namespace DemoApplication
{
    class Program
    {
        enum Days { Sun, Mon, Tue, Wed, Thu, Fri, Sat }

        static void Main(string[] args)
        {
            Console.WriteLine(Days.Sun);
            Console.ReadKey();
        }
    }
}

Code Breakdown

Enum declaration: enum Days { Sun, Mon, Tue, Wed, Thu, Fri, Sat } creates a new type named Days with seven named values.
Usage: Console.WriteLine(Days.Sun); prints the enum value to the console.

If you run this program, you’ll see the following output:

Output

The console displays Sun, confirming that the enum value is correctly referenced.

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