Meaning of pound (#) in a regular expression

Question

I have a regular expression with a pound # modifier.

What does \\# mean in a regular expression? What does the # mean in a regul

Answer 1

\# is not a valid regex modifier. It would technically be a way to escape a # character, IF the # meant anything significant in Java's regex. Because it doesn't, Java is just ignoring this invalidity and reading it as a # instead of throwing you an error.