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AlirezaDehqani asked:

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Hi all. i wanna write c# console app that compute " Number of Words in a Sentence"
and i write this code but it's a big problem that if number of "Space" in between sentence more than one the program output is Wrong.
using System;
namespace Test
{
    class Program
    {
        static void Main()
        {
            string st1 = "  this is a test    ";
            // First character
            char firstChar = 'a';
            int counter = 0;
            int indexfirstChar = 0;
            char lastChar = 'l';
            int indexLastChar = 0;
            for (int i = 0; i < st1.Length; i++)
            {
                if (char.IsLetter(st1[i]) || char.IsDigit(st1[i]))
                {
                    firstChar = st1[i];
                    indexfirstChar = i;
                    break;
                }
            }
            // latest character 
            for (int i = st1.Length - 1; i >= 0; i--)
            {
                if (char.IsLetter(st1[i]) || char.IsDigit(st1[i]))
                {
                    lastChar = st1[i];
                    indexLastChar = i;
                    break;
                }
            }
          
            for (int i = indexfirstChar; i < indexLastChar + 1; i++)
            {
                if (st1[i].ToString() == " ")
                    counter++;
            }
            Console.WriteLine(" Number of Word:" + counter + 1);
        }
    }
}
 

Tags: C#2.0, C#3.0, C#4.0

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