Question

How to implement a function that remove all occurrences of a character in a string with C#

Answer 1

using System;
 
class Program
{
    static String remove_all_occurrences(string s, char ch) { 
        int j, total = 0, n = s.Length; 
        char[] chars = s.ToCharArray(); 
         
        for (int i = j = 0; i < n; i++) { 
            if (s[i] != ch) {
                chars[j++] = s[i]; 
            }
            else {
                total++; 
            }
        } 
       
        while(total > 0) { 
            chars[j++] = '\0'; 
            total--; 
        } 
       
        return new string(chars);
    } 
    static void Main()
    {
        string s = "c# programming version 7.3";
         
        s = remove_all_occurrences(s, 'g'); 
         
        Console.Write(s); 
    }
}
 
 
/*
run: 
 
c# prorammin version 7.3
 
*/

 

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