Introduction
I have used Visual Studio 2012 for debugging purpose. But you can use any version of visul studio as per your availability.
using System; class Program { static void Main(string[] args) { char ch; //Reading an alphabet from user Console.WriteLine("Enter any alphabet: "); ch = Convert.ToChar(Console.ReadLine()); // checking vowel and consonant switch (ch) { case 'a': Console.WriteLine("vowel"); break; case 'e': Console.WriteLine("vowel"); break; case 'i': Console.WriteLine("vowel"); break; case 'o': Console.WriteLine("vowel"); break; case 'u': Console.WriteLine("vowel"); break; case 'A': Console.WriteLine("vowel"); break; case 'E': Console.WriteLine("vowel"); break; case 'I': Console.WriteLine("vowel"); break; case 'O': Console.WriteLine("vowel"); break; case 'U': Console.WriteLine("vowel"); break; default: Console.WriteLine("consonant"); break; } Console.ReadLine(); } }