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frew@mclean.com > percentEven
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Return the percentage of even ints in the given array.


percentEven([2, 1, 2, 3, 4]) → 0.6
percentEven([2, 2, 0]) → 1.0
percentEven([1, 3, 5]) → 0.0

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public double percentEven(int[] nums) { }

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