Regular expressions are greedy by default, meaning that the first group captures as much as possible without violating the regex. The (.*)(\\d+) ... ... <看更多>

Java Regex - Capturing Groups. expression: # Name from extracted data to parse. Variables produced - Matches. 2 Jul 2020 Capture groups always exist if . ... <看更多>

Capturing groups are automatically numbered when the regex is compiled. ... a Matcher object to find out ... ... <看更多>

I recently needed to group a set of strings by regex. ... Here's the function that produces the appropriate key based on a regex match. ... <看更多>

That will only work if you set the multi-line flag, otherwise $ means end of string. Matcher m = Pattern.compile('(?m)^aaaa\\b.*$') .matcher(' ... ... <看更多>

Numbered capture groups allow one to refer to certain portions of a string that a regular expression matches. Each capture group is assigned a unique number ... ... <看更多>