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zbaharav@kehillah.org 21-warmup-whileloops > lengthOfAs
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Given an input String str, which contains (at most one) sequence of A's, return an integer indicating the length of this sequence.


lengthOfAs("abcAAAabc") → 3
lengthOfAs("aAa") → 1
lengthOfAs("AAA") → 3

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public int lengthOfAs(String str) { }

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