Question: Java question Given a non-empty array of integers, count how many of the values appear exactly one time in the array. countLoners([4, 7, 4]) rightarrow

Java question

Given a non-empty array of integers, count how many of the values appear exactly one time in the array. countLoners([4, 7, 4]) rightarrow 2 countLoners([3, 5, 3, 5]) rightarrow 2 countLoners([4, 1, 9]) rightarrow 3

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