C#: Check whether an alphabet is a vowel or consonant

Last update on December 20 2024 12:39:13 (UTC/GMT +8 hours)

Write a C# Sharp program to check whether an alphabet letter is a vowel or a consonant.

Sample Solution:-

C# Sharp Code:

using System;  // Importing necessary namespaces

public class exercise16  // Declaration of the exercise16 class
{
    static void Main(string[] args)  // Entry point of the program
    {
        char ch;  // Declaration of a character variable to store the input

        Console.Write("\n\n");  // Printing new lines
        Console.Write("check whether the input alphabet is a vowel or not:\n");  // Displaying the purpose of the program
        Console.Write("-----------------------------------------------------");  // Displaying a separator
        Console.Write("\n\n");

        Console.Write("Input an Alphabet (A-Z or a-z) : ");  // Prompting user to input an alphabet
        ch = Convert.ToChar(Console.ReadLine().ToLower());  // Reading the input and converting it to lowercase

        int i = ch;  // Converting the character to its corresponding ASCII value

        if (i >= 48 && i <= 57)  // Checking if the input is a number
        {
            Console.Write("You entered a number, Please enter an alphabet.");  // Prompting user to enter an alphabet
        }
        else
        {
            switch (ch)  // Switch statement to check for vowels
            {
                case 'a':
                    Console.WriteLine("The Alphabet is vowel");  // Printing a message if 'a' is entered
                    break;
                case 'i':
                    Console.WriteLine("The Alphabet is vowel");  // Printing a message if 'i' is entered
                    break;
                case 'o':
                    Console.WriteLine("The Alphabet is vowel");  // Printing a message if 'o' is entered
                    break;
                case 'u':
                    Console.WriteLine("The Alphabet is vowel");  // Printing a message if 'u' is entered
                    break;
                case 'e':
                    Console.WriteLine("The Alphabet is vowel");  // Printing a message if 'e' is entered
                    break;
                default:
                    Console.WriteLine("The Alphabet is not a vowel");  // Printing a message for non-vowel characters
                    break;
            }
        }
        Console.ReadKey();  // Waiting for a key press before closing the console window
    }
}
 

Sample Output:

check whether the input alphabet is a vowel or not:                                                           
-----------------------------------------------------                                                             
Input an Alphabet : A                                                                                         
The Alphabet is vowel  

Visual Presentation:

Flowchart:

C# Sharp Code Editor:

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