Recursive Sum of Digits

Complete the static method sumDigits so it returns the sum of the digits of a non-negative integer using RECURSION.

For sumDigits(1234) the program prints 10 (1+2+3+4).

Expected Output:

10↵
9↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Methods

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