lookahead « group « Java Regex Q&A

1. lookahead and group    stackoverflow.com

In Java, on a text like foo <on> bar </on> thing <on> again</on> now, I should want a regex with groups wich give me with a find "foo", "bar", empty string, ...

2. Lookahead regex produces unexpected group    stackoverflow.com

I'm trying to extract a page name and query string from a URL which should not contain .html Here is an example code in Java:

public class TestRegex { 
    ...