How can I safely encode a string in Java to use as a filename?

Question

I\'m receiving a string from an external process. I want to use that String to make a filename, and then write to that file. Here\'s my code snippet to do this:

Answer 1

Try using the following regex which replaces every invalid file name character with a space:

public static String toValidFileName(String input)
{
    return input.replaceAll("[:\\\\/*\"?|<>']", " ");
}