Question

How to check if a character in a string is numeric with C#

Answer 1

using System;
 
public class Program
{
    public static void Main(string[] args)
    {
        string str = "c# 890";
 
        char character = str[4];
 
        if (char.IsDigit(character)) {
            Console.WriteLine("character is numeric");
        }
    }
}
 
 
 
/*
run:
 
character is numeric
 
*/

 

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Answer 2

using System;

public class Program
{
	public static void Main(string[] args)
	{
		string str = "c# 890";
		int index = 4;

		if (char.IsDigit(str[index])) {
			Console.WriteLine("character is numeric");
		}
	}
}




/*
run:

character is numeric

*/

 

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