using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace SentenceApplication

{

     public class MyClass {

        public string sen;

        public int len;

        public void Enter_Sent(){

            Console.WriteLine("Enter Your Sentence:");

            sen = Console.ReadLine();

            len = sen.Length;

        }

        public void Char_Word_Count(){

            int ch_count,word_count;

            ch_count = word_count = 0;

            for (int i = 0; i < len; i++)

            {

                if (sen[i] != ' ')

                {

                    ch_count++;

                }

            }

             for (int i = 0; i < len-1; i++)

            {

                if (sen[i] == ' ' && Char.IsLetter(sen[i + 1]) && (i > 0))

                {

                    word_count++;

                }  

            }

            word_count++;

            Console.WriteLine("Number of Charcatres in Sentence:" + ch_count);

            Console.WriteLine("Number Of Words in Sentence:" + word_count);

        }

        public void Str_Len_Reverse() {

            string rev = "";

            int revlen = sen.Length - 1;

            while (revlen >= 0)

            {

                rev = rev + sen[revlen];

                revlen--;

            }

            Console.WriteLine("Length of Sentecnce:"+len);

            Console.WriteLine("Reverse Sentecnce:" + rev);

        }

        public void Alphabets_Digit() {

            int alpha,digit,i;

            alpha =digit= i = 0;

            while (i < len)

            {

                if ((sen[i] >= 'a' && sen[i] <= 'z') || (sen[i] >= 'A' && sen[i] <= 'Z'))

                {

                    alpha++;

                }

                else if (sen[i] >= '0' && sen[i] <= '9')

                {

                    digit++;

​

                }

                i++;

            }

            Console.WriteLine("Number of Alphabets in the Sentecnce:" + alpha);

            Console.WriteLine("Number of Digit in the Sentecnce:" + digit);

        }

        public void Vowel_Consonant()

        {

            int i, vowel,con;

            vowel =con= 0;

            for (i = 0; i < len; i++)

            {

                 if(sen[i] =='a' || sen[i]=='e' || sen[i]=='i' || sen[i]=='o' || sen[i]=='u' || sen[i]=='A' || sen[i]=='E' || sen[i]=='I' || sen[i]=='O' || sen[i]=='U')

                 {

                    vowel++;

                 }

                 else if (sen[i] == 'b' || sen[i] == 'c' || sen[i] == 'd' || sen[i] == 'f' || sen[i] == 'g' || sen[i] == 'h' || sen[i] == 'j' || sen[i] == 'k' || sen[i] == 'l' || sen[i] == 'm' || sen[i] == 'n' || sen[i] == 'p' || sen[i] == 'q' || sen[i] == 'r' || sen[i] == 's' || sen[i] == 't' || sen[i] == 'v' || sen[i] == 'w' || sen[i] == 'x' || sen[i] == 'y' || sen[i] == 'z' || sen[i] == 'B' || sen[i] == 'C' || sen[i] == 'D' || sen[i] == 'F' || sen[i] == 'G' || sen[i] == 'H' || sen[i] == 'J' || sen[i] == 'K' || sen[i] == 'L' || sen[i] == 'M' || sen[i] == 'N' || sen[i] == 'P' || sen[i] == 'Q' || sen[i] == 'R' || sen[i] == 'S' || sen[i] == 'T' || sen[i] == 'V' || sen[i] == 'W' || sen[i] == 'X' || sen[i] == 'Y' || sen[i] == 'Z')

                 {

                     con++;

                 }

            }

            Console.WriteLine("Number of Vowel in the Sentecnce:"+vowel);

            Console.WriteLine("Number of Consonant  in the Sentecnce:" + con);

        }

    }

    public class Program

    {

        public static void Main(string[] args)

        {

            MyClass mc = new MyClass();

            mc.Enter_Sent();

            mc.Char_Word_Count();

            mc.Str_Len_Reverse();

            mc.Alphabets_Digit();

            mc.Vowel_Consonant();

            Console.ReadLine();

        }

    }

}

​