Question

How to check if a character exists in a string with C#

Answer 1

using System;

class Program
{
    static void Main() {
        String s = "c# programming"; 
       
        if (s.IndexOf('p', StringComparison.CurrentCultureIgnoreCase) != -1) 
            Console.Write("yes");            
        else
            Console.Write("no");
    }
}




/*
run:

yes

*/

 

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Answer 2

using System;
using System.Linq;

class Program
{
    static void Main() {
        String s = "c# programming"; 
       
        if (s.ToLower().Contains('p')) 
            Console.Write("yes");            
        else
            Console.Write("no");
    }
}




/*
run:

yes

*/

 

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