C#: Check a input is a vowel, a digit, or any other symbol

Last update on August 20 2025 12:40:04 (UTC/GMT +8 hours)

Write a C# Sharp program that takes a character as input and checks if it is a vowel, a digit, or any other symbol.

Sample Solution:-

C# Sharp Code:

using System;

public class Exercise9
{
    public static void Main()
    {
        // Declare a variable to store the symbol entered by the user
        char symbol;

        // Input a symbol from the user
        Console.Write("Input a symbol: ");
        symbol = Convert.ToChar(Console.ReadLine());

        // Check if the entered symbol is a lowercase vowel
        if ((symbol == 'a') || (symbol == 'e') || (symbol == 'i') || 
            (symbol == 'o') || (symbol == 'u'))
        {
            Console.WriteLine("It's a lowercase vowel.");
        }
        // Check if the entered symbol is a digit
        else if ((symbol >= '0') && (symbol <= '9'))
        {
            Console.WriteLine("It's a digit.");
        }
        // If the entered symbol doesn't match the above conditions, it's another symbol
        else
        {
            Console.Write("It's another symbol.");
        }        
    }
}

Sample Output:

Input a symbol: a                                                                                             
It's a lowercase vowel.  

Visual Presentation:

Flowchart:

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