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How to move all special characters to beginning of a string in C#

1 Answer

0 votes
using System;
using System.Text.RegularExpressions;
 
class Program
{
    static String move_special_characters_to_beginning(String s) {
        int len = s.Length;
 
        var regx = new Regex("[a-zA-Z0-9]");
 
        String chars = "", pecial_characters = "";
        for (int i = 0; i < len; i++) { 
            char ch = s[i]; 
            if (regx.IsMatch(ch.ToString())) 
                chars = chars + ch; 
            else
                pecial_characters = pecial_characters + ch; 
        } 
        return pecial_characters + chars;
    } 
    static void Main() {
        String s = "c++$vb.net&%java*() php c# <>/python 3.7.3"; 
         
        Console.WriteLine(move_special_characters_to_beginning(s));
    }
}
 
 
/*
run:
 
++$.&%*()  # <>/ ..cvbnetjavaphpcpython373
 
*/

 




answered Aug 13 by avibootz
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