Csharp/CSharp Tutorial/Regular Expression/Regex SIN

Social-security-number matching: [0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9][0-9][0-9]

<source lang="csharp">using System; using System.Collections.Generic; using System.Globalization; using System.Text; using System.Text.RegularExpressions; using System.Reflection; public class MainClass{

  public static void Main(){
       Regex r1 = new Regex("[0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9][0-9][0-9]");
       
       string s = "011-01-0111";
       string s2 = "abc-01-0111";
       
       Console.WriteLine(r1.ToString());
       Console.WriteLine(r1.IsMatch(s)); 
       Console.WriteLine(s2);
       Console.WriteLine(r1.IsMatch(s2));
  }

}</source>

[0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9][0-9][0-9]
True
abc-01-0111
False

Social-security-number matching: [0-9]{3}-[0-9]{2}-[0-9]{4}

<source lang="csharp">using System; using System.Collections.Generic; using System.Globalization; using System.Text; using System.Text.RegularExpressions; using System.Reflection; public class MainClass{

  public static void Main(){
       Regex r1 = new Regex("[0-9]{3}-[0-9]{2}-[0-9]{4}");
       
       string s = "011-01-0111";
       string s2 = "abc-01-0111";
       
       Console.WriteLine(r1.ToString());
       Console.WriteLine(r1.IsMatch(s)); 
       Console.WriteLine(s2);
       Console.WriteLine(r1.IsMatch(s2));
  }

}</source>

[0-9]{3}-[0-9]{2}-[0-9]{4}
True
abc-01-0111
False