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Exercise 7.10: percentEven

Added by: Aryan Naraghi
Keywords: arrays, traversals

Write a method called percentEven that accepts an array of integers as a parameter and returns the percentage of even numbers in the array as a real number. For example, if the array stores the elements {6, 2, 9, 11, 3}, then your method should return 40.0. If the array contains no even elements or no elements at all, return 0.0.

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