Check whether the specified Unicode character is a letter or a decimal digit in C#

To check whether the specified Unicode character is a letter or a decimal digit, the code is as follows −

Example

 Live Demo

using System;
public class Demo {
   public static void Main() {
      bool res;
      char val = '1';
      Console.WriteLine("Value = "+val);
      res = Char.IsLetterOrDigit(val);
      Console.WriteLine("Is the value a letter or digit? = "+res);
   }
}

Output

This will produce the following output −

Value = 1
Is the value a letter or digit? = True

Example

Let us see another example −

 Live Demo

using System;
public class Demo {
   public static void Main() {
      bool res;
      char val = '$';
      Console.WriteLine("Value = "+val);
      res = Char.IsLetterOrDigit(val);
      Console.WriteLine("Is the value a letter or digit? = "+res);
   }
}

Output

This will produce the following output −

Value = $
Is the value a letter or digit? = False