Java中List转数组,必须带个参数

    public static void main(String[] args) {
        List<String> lst = new ArrayList();
        lst.add("赵云 ");
        lst.add("张飞");
        //X: String[] strA = (String[]) lst.toArray();
        // List转数组:toArray(必须带个参数)
        String[] strA = (String[]) lst.toArray(new String[0]);
        for (String s : strA) {
            System.out.println(s);
        }
    }