关于java数组循环的问题

Question

数组 循环只想要一层循环，
有没有什么办法把list在循环一次，直到s1完成。

    String[] s1 = {"a","s","d","f"};//4个
    List<String> list = new ArrayList<String> ();//2个
    list.add("a");
    list.add("s");
    for (int i = 0; i < s1.length; i++) {
        String string1 = s1[i];
        list.get(i);
        System.out.println(list);
    }

Answer 1

 String[] s1 = {"a","s","d","f"};//4个
    List<String> list = new ArrayList<String> ();//2个
    list.add("a");
    list.add("s");
    for (int i = 0; i < s1.length; i++) {
        String string1 = s1[i];
        list.get(i%list.size());
        System.out.println(list);
    }