Java String.replaceAll正则表达式

Question

What is the regex to strip the MY-CORP\\ part of na inputed string like MY-CORP\\My.Name with the java String.replaceAll method so I can get only the My.Name part?

I tried

public static String stripDomain(String userWithDomain) {
    return userWithDomain.replaceAll("^.*\\", "");
}

but i got Unexpected internal error near index 4 ^. *

Answer 1

Your problem is that the backslash has special meaning both in Java strings and in regexes. So you need four slashes in the Java source code, passing two to the regex parser to get one literal one in the regex:

return userWithDomain.replaceAll("^.*\\\\", "");