Regex Matching on Capture groups

Question

I have this regular expression:
(throw|give)(?: ([1-3][A-B]))+
given this input:
throw 1A 2C 1B 3C
How would I capture each of the items 1A 2C 1B and 3C?
In the above expression I have 3 capture groups
group0: whole expression
group1: (throw|give)
group2: ((?:1|2|3)(?:A|B|C))
The problem is that when I execute the find() on my matcher it tries matching the whole expression at once! That means for the group 2 I always get the last match only:
group0: throw 1A 2C 1B 3C
group1: throw
group2: 3C
How do I get the matcher to only match on ONE capture group at a time?! Is it possible? I thought that was the purpose of the find() method. The documentation says find() matches on a "subsequence", yet I can only get it to match on the whole expression. Plus, I don't see where "subsequence" is defined in the documentation. What am I missing here?

Answer 1

"Attempts to find the next subsequence of the input sequence that matches the pattern." (my emphasis)
find() matches the whole regex, not components thereof. What you need to do is use one regex to match the whole expression and return a capture group with the digit-letter pairs, and then use another regex on that capture group to extract the pairs one at a time.*******************************************************************************
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