How to remove control characters from java string?

Question

I have a string coming from UI that may contains control characters, and I want to remove all control characters except carriage returns, line feeds

Answer 1

This seems to be an option

    String s = "\u0001\t\r\n".replaceAll("[\\p{Cntrl}&&[^\r\n\t]]", "");
    for (char c : s.toCharArray()) {
        System.out.print((int) c + " ");
    }

prints 9 13 10 just like you said "except carriage returns, line feeds, and tabs".