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simona1@sfusd.edu recursion3 > countDigits
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Given a non-negative int n, return the number of its digits recursively (no loops). Note that divide (/) by 10 removes the rightmost digit (126 / 10 is 12).


countDigits(126) → 3
countDigits(49) → 2
countDigits(12) → 2

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public int countDigits(int n) { }

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