letter counter | C# Online Compiler

letter counter by Johnny boy

using System;

public class Program
{
	public static void Main()
	{
		string str;
		int i, len, vowel, cons;
		Console.WriteLine("\n\nCount total number of vowel or consonant\n");
		Console.WriteLine("-----------------------------------------\n");
		Console.WriteLine("Input the string: ");
		str = Console.ReadLine();
		vowel = 0;
		cons = 0;
		len = str.Length;
		i = 0;
		while (i < len)
		{
			if (str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u' || str[i] == 'A' || str[i] == 'E' || str[i] == 'I' || str[i] == 'O' || str[i] == 'U')
			{
				vowel++;
			}
			else
			{
				if (str[i] != ' ')
					cons++;
			}

			i++;
		}

		Console.WriteLine("\nThe total number of vowels in the string is: {0}\n", vowel);
		Console.WriteLine("The total number of consonants in the string is: {0}\n\n", cons);
	}
}

​x
 
using System;
​
public class Program
{
    public static void Main()
    {
        string str;
        int i, len, vowel, cons;
        Console.WriteLine("\n\nCount total number of vowel or consonant\n");
        Console.WriteLine("-----------------------------------------\n");
        Console.WriteLine("Input the string: ");
        str = Console.ReadLine();
        vowel = 0;
        cons = 0;
        len = str.Length;
        i = 0;
        while (i < len)
        {
            if (str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u' || str[i] == 'A' || str[i] == 'E' || str[i] == 'I' || str[i] == 'O' || str[i] == 'U')
            {
                vowel++;
            }
            else
            {
                if (str[i] != ' ')
                    cons++;
            }
​
            i++;
        }
​
        Console.WriteLine("\nThe total number of vowels in the string is: {0}\n", vowel);
        Console.WriteLine("The total number of consonants in the string is: {0}\n\n", cons);
    }
}

Compilation error (line 18, col 52): The type or namespace name 'List' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 18, col 65): Cannot initialize object of type 'List<object>' with a collection initializer
Compilation error (line 19, col 21): The name 'HttpContext' does not exist in the current context
Compilation error (line 20, col 21): The name 'HttpContext' does not exist in the current context
Compilation error (line 21, col 21): The name 'HttpContext' does not exist in the current context
Compilation error (line 25, col 22): The name 'HttpContext' does not exist in the current context
Compilation error (line 26, col 17): The name 'HttpContext' does not exist in the current context
Compilation error (line 27, col 22): The name 'HttpContext' does not exist in the current context
Compilation error (line 30, col 22): The name 'HttpContext' does not exist in the current context
Compilation error (line 31, col 22): The name 'HttpContext' does not exist in the current context

Last Run:	11:00:48 pm
Compile:	0s
Execute:	0.112s
Memory:	0b
CPU:	0s

View IL Code