如何动态遍历arraylist并添加每个第n个元素

import java.util.ArrayList;

public class DynamicArrayListTraversal {
    public static void main(String[] args) {
        ArrayList<Integer> originalList = new ArrayList<>();
        originalList.add(1);
        originalList.add(2);
        originalList.add(3);
        originalList.add(4);
        originalList.add(5);

        int n = 2; // 添加每个第2个元素

        ArrayList<Integer> resultList = traverseAndAdd(originalList, n);

        System.out.println("结果ArrayList: " + resultList);
    }

    public static ArrayList<Integer> traverseAndAdd(ArrayList<Integer> originalList, int n) {
        ArrayList<Integer> resultList = new ArrayList<>();

        for (int i = 0; i < originalList.size(); i++) {
            if ((i + 1) % n == 0) {
                resultList.add(originalList.get(i));
            }
        }

        return resultList;
    }
}

结果ArrayList: [2, 4]