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Convert the given integer list to an integer array.


convert_listToArray([1, 2, 3]) → [1, 2, 3]
convert_listToArray([1, 2, 3, 4, 5]) → [1, 2, 3, 4, 5]
convert_listToArray([1, 3, 5, 7, 9]) → [1, 3, 5, 7, 9]

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public int[] convert_listToArray(List<Integer> list) { }

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