i want to find out vowel in any text. but can't

Question

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C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int vowel;
            vowel=0;
            int i=0;
            Console.WriteLine("Enter Your Text:\n");
            char[] stringName = new char[10];
            for (int u = 0; u < stringName.length; u++)
            {
                stringName[u] =Console.ReadLine();
            }
            Console.WriteLine("Your text size is {0} character long\n",stringName.Length);
            while (i <stringName.Length)
            {
                if (stringName[i] == 'a' || stringName[i] == 'e' || stringName[i] == 'i' || stringName[i] == 'o' || stringName[i] == 'u' || stringName[i] == 'A' || stringName[i] == 'E' || stringName[i] == 'I' || stringName[i] == 'O' || stringName[i] == 'U')
                    vowel++;
                i++;

            }
            Console.WriteLine(vowel);
            Console.ReadLine();

        }
    }
}

Posted 28-Nov-13 5:57am

Durjoy39

Updated 28-Nov-13 6:05am

Richard MacCutchan

v2

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Comments

AnthonyMG 28-Nov-13 12:09pm

Check the Solution provided and let me know if this is what you expect..

5 solutions

Solution 1

You can try this code.

C#

static void Main()
{
    // Build a list of vowels up front:
    var vowels = new HashSet<char> { 'a', 'e', 'i', 'o', 'u' };

    Console.WriteLine("Enter a Sentence");
    string sentence = Console.ReadLine().ToLower();

    int total = sentence.Count(c => vowels.Contains(c));
    Console.WriteLine("Your total number of vowels is: {0}", total);
    Console.ReadLine();
}

Posted 28-Nov-13 6:06am

AnthonyMG

Comments

AnthonyMG 28-Nov-13 12:18pm

This solution is optimized one...check it.

BillWoodruff 28-Nov-13 17:08pm

+5 Great answer !

AnthonyMG 29-Nov-13 3:50am

Thanks BillWoodruff

Solution 3

Don't use a character array for your input, as you can create a string directly like this:

C#

Console.WriteLine("Enter Your Text:");
string stringName = Console.ReadLine();
Console.WriteLine("Your text size is {0} character long", stringName.Length);

Also you do not need to put the \n at the end of your format string, since Console.WriteLine adds it automatically.

Posted 28-Nov-13 6:10am

Richard MacCutchan

Solution 6

I am voting for AnthonyMG's solid answer above; I'll show a non-Linq solution here just for the sake of having a variety of answers.

C#

private char[] vowels = new char[] { 'a', 'e', 'i', 'o', 'u' };

private int CountVowels(string theString)
{
    return theString.Split(vowels, StringSplitOptions.RemoveEmptyEntries).Length;
}

Sample test:

int total = CountVowels("when 9999 \r\n in the course 3456of human events \a it becomes necessary");

Note in the test the use of the only vowel, 'a,' that is valid as an escaped character.

Posted 28-Nov-13 11:14am

BillWoodruff

Solution 2

HI just made slight modification to your code..

C#

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace console_poc
{
    class Program
    {
        static void Main(string[] args)
        {
            int vowel;
            vowel = 0;
            int i = 0;
            Console.WriteLine("Enter Your Text:\n");
            char[] stringName = new char[10];
            for (int u = 0; u < stringName.Length; u++)
            {
                stringName[u] = Console.ReadKey(false).KeyChar;
            }
            Console.WriteLine("Your text size is {0} character long\n", stringName.Length);
            while (i < stringName.Length)
            {
                if (stringName[i] == 'a' || stringName[i] == 'e' || stringName[i] == 'i' || stringName[i] == 'o' || stringName[i] == 'u' || stringName[i] == 'A' || stringName[i] == 'E' || stringName[i] == 'I' || stringName[i] == 'O' || stringName[i] == 'U')
                    vowel++;
                i++;

            }
            Console.WriteLine(vowel);
            Console.ReadLine();

        }
    }
}

Posted 28-Nov-13 6:09am

Karthik_Mahalingam

Comments

Durjoy39 28-Nov-13 13:21pm

your solution is right but. if a press a sentence that 6 character long ur code show me 10 character because it takes 4 times enter key. please give me a solution

Karthik_Mahalingam 28-Nov-13 13:23pm

check solution 4.. its my way of coding style.. u can use that..

Durjoy39 28-Nov-13 13:25pm

i want to check vowel, consonant, digit and others. thats why if u don't mind can u solve my code.

Karthik_Mahalingam 28-Nov-13 13:27pm

sure, pls post ur requirement in detail...

Durjoy39 28-Nov-13 13:30pm

i want to find out vowel, consonant, digit, space thats type of thing. if i can solve my code then by using ascii code i can solve all other requirement.

Karthik_Mahalingam 28-Nov-13 13:36pm

ok.. try Solution 5....

Durjoy39 28-Nov-13 13:40pm

thnx a lot. but i don't understant what was wrong with my code. and why here
char[] stringName = new char[10];
for (int u = 0; u < stringName.length; u++)
{
stringName[u] =Console.ReadLine();
}
console.readline(); is not working.

Karthik_Mahalingam 28-Nov-13 13:42pm

if anyof of the solution is working, pls mark as answer..

console.readline() returns a string value..
but u r assigning to a character array value.
it is invalid..

Durjoy39 28-Nov-13 13:44pm

stringName[u] = Console.ReadKey(false).KeyChar;
what does this statement basically.

Karthik_Mahalingam 28-Nov-13 13:47pm

console.readkey() returns a consolekeyinfo object
that consolekeyinfo object has a property KeyChar , in which u can get the character code value of the key u pressed in keyboard..
keychar is a character value...

Durjoy39 28-Nov-13 13:49pm

then why need the false parameter.

Karthik_Mahalingam 28-Nov-13 13:51pm

Determines whether to display the pressed key in the console window.
true to not display the pressed key; otherwise, false.

Durjoy39 28-Nov-13 13:52pm

thnx

Karthik_Mahalingam 28-Nov-13 13:55pm

welcome :)

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Karthik_Mahalingam · Accepted Answer · 2013-11-28T07:35:00

try this too..

C#

//using System;

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace console_poc
{
    class Program
    {
        static void Main(string[] args)
        {
            int vowel = 0, number = 0,specialcharacters =0;



            Console.WriteLine("Enter Your Text:\n");
            string name = Console.ReadLine();
            Console.WriteLine("Your text size is {0} character long\n", name.Length);
            char[] vowels = { 'a', 'A', 'e', 'E', 'i', 'I', 'o', 'O', 'u', 'U' };
            char[] numbers = { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0' };
            char[] specialCharacters = { '!','@',' ','$','%','^','*','&'};
            foreach (char c in name)
            {
                if (vowels.Contains(c))
                    vowel++;
                if (numbers.Contains(c))
                    number++;
                if (specialCharacters.Contains(c))
                    specialcharacters++;

            }
            Console.WriteLine("vowels count =" + vowel);
            Console.WriteLine("numbers count =" + number);
            Console.WriteLine("special characters count =" + specialcharacters);
            Console.ReadLine();

        }
    }
}