Java regex capture not working

Question

I have a regular expression:

l:([0-9]+)

This should match this string and return three captures (according to Rubular)

\"l:         


        

Answer 1

Matcher.find() returns false when there are no more matches, so you can do a while loop whilst getting and processing each group. For example, if you want to print all matches, you can use the following:

    Matcher m;
    Pattern p = Pattern.compile("l:([0-9]+)");
    m = p.matcher("l:32, l:98, l:1234");

    while (m.find()) {
        System.out.println(m.group());
    }