C#

Regex.Replace("your String", "[A-Za-z]", "");

public string RemoveLetters(string original)
{
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    for(int i = 0; i < original.Length; i++)
    {
      if(!char.IsLetter(original, i))
         sb.Append(original[i]);
    }
    return sb.ToString();
}

public string RemoveLetters(string original)<br/>{<br/>    System.Text.StringBuilder sb = new System.Text.StringBuilder();<br/>    for(int i = 0; i < original.Length; i++)<br/>    {<br/>      if(!char.IsLetter(original, i))<br/>         sb.Append(original[i]);<br/>    }<br/>    return sb.ToString();<br/>}

Regex.Replace("your String", "[A-Za-z]", "");

J4amieC wrote:

So actually giving them the Regex answer is a Good Thing, as the teacher will instantly know that they have shown no understanding of the problem and have simply asked an online forum for the answer.

harold aptroot wrote:

What does that mean?

Serv-dee wrote:

how to make application forms lookable?