How to get several regex groups from Matcher in Java?

Question

I have a Java program that does some String matching. I'm looking for anything that matches \d+x\d+ in a String. This works, using the Pattern and Matcher classes. However, to parse the String parts I have found, I have to manually parse the String I get from the Matcher.find() and Matcher.group(). How can I tell the Pattern I'm looking for something in the form of (\d+)x(\d+) and get the Matcher to return those groups separately? So instead of the string "1x23" I want to get two strings, "1" and "23".

Answer 1

Use Matcher.group(int), not Matcher.group().
With the given regex and input, group(1) should be "1" and group(2) should be "23".