Eight backslashes required to replace single backslash with double backslashes?

Question

This is a \"what the heck is going on here\" question. I don\'t actually need a solution.

I had to replace all single backslashes in a String with double backslashe

Answer 1

It's easier if you use replace("\\","\\\\") (String.replace takes literal strings and is more efficient when it's all literal)

or you can ensure correctness through the Pattern.quote and Matcher.quoteReplacement functions