[프로그래머스/Java] n개 간격의 원소들

-Code

import java.util.ArrayList;

class Solution {
    public int[] solution(int[] num_list, int n) {
        ArrayList<Integer> answer = new ArrayList<>();
        for (int i = 0; i < num_list.length; i = i + n) answer.add(num_list[i]);
        return answer.stream().mapToInt(Integer::intValue).toArray();
    }
}