Get matched delimiter when using regex in Scanner

Question

Hi!
I was wondiering if it is possible to get the value that the delimiter actually matched when using regular expressions in the Scanner?
I have for example the following code:
Scanner sc1 = new Scanner("test 123 string 456");
sc1.useDelimiter("\\d+");
while (sc1.hasNext()) {
     System.out.println(sc1.next());
}will output:
test
stringBut I would also like to know what digits that the delimiter matched.
Best regards
Lars

Answer 1

Scanner.matchResult() returns a MatchResult, which has start() and end() methods. After your very first call to next() this is not helpful, but after your second call to next() you can use the previous value returned by end() and the new value returned by start() and take the substring between those positions.
...does that make sense? It's not a panacea, but it's better than nothing.