Question

How to find a word in a string in C#

Answer 1

using System;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = "c# programming is nice";

            if (s.Contains("programming"))
                Console.WriteLine("Found"); // Found
            else
                Console.WriteLine("NOT Found");

            string s1 = "c#";

            if (s.Contains(s1))
                Console.WriteLine("Found"); // Found
            else
                Console.WriteLine("NOT Found");

            if (s.Contains("pro"))
                Console.WriteLine("Found"); // Found
            else
                Console.WriteLine("NOT Found");

            if (s.Contains("PROGRAMMING"))
                Console.WriteLine("Found");
            else
                Console.WriteLine("NOT Found"); // NOT Found

            if (s.IndexOf("programming") >= 0)
                Console.WriteLine("Found"); // Found
            else
                Console.WriteLine("NOT Found");
            
            if (s.IndexOf("PROGRAMMING", StringComparison.OrdinalIgnoreCase) >= 0)
                Console.WriteLine("Found"); // Found
            else
                Console.WriteLine("NOT Found");

        }
    }
}

/*

run:

Found
Found
Found
NOT Found
Found
Found
  
*/

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