Question

How to split a string by its character and number parts in C#

Answer 1

using System;
using System.Text.RegularExpressions;
 
public class program
{
    public static void Main(string[] args)
    {
        string str = "csharp123";
         
        Regex re = new Regex(@"([a-zA-Z]+)(\d+)");
        Match result = re.Match(str);
         
        string charsPart = result.Groups[1].Value; 
        string numbersPart = result.Groups[2].Value; 
         
        Console.WriteLine(charsPart);
        Console.WriteLine(numbersPart); 
    }
}
 
 
 
/*
run:
 
csharp
123
 
*/

 

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Answer 2

using System;
using System.Linq;
 
public class program
{
    public static void Main(string[] args)
    {
        string str = "csharp123";
         
        var digits = from ch in str
                    where Char.IsDigit(ch)
                    select ch;
 
        var chars = from ch in str
                    where !Char.IsDigit(ch)
                    select ch;
         
        foreach (char ch in chars) {
            Console.Write(ch);
        }
        
        Console.WriteLine();
        
        foreach (char ch in digits) {
            Console.Write(ch);
        }
    }
}
 
 
 
/*
run:
 
csharp
123
 
*/

 

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