Question

How to extract lowercase characters from a string in C#

Answer 1

using System;
   
class Program
{
    static string extract_lowercase(string s) { 
        int len = s.Length; 
        string lower_s = ""; 
            
        for (int i = 0; i < len; i++) { 
             if (s[i] >= 97 && s[i] <= 122) 
                 lower_s += s[i]; 
        } 
        return lower_s;
    } 
    static void Main() {
        string s = "cCshSHaARrpP"; // csharpCSHARP
       
        string lc = extract_lowercase(s);
         
        Console.Write(lc); 
    }
}
   
   
   
/*
run:
   
csharp
   
*/

 

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