springboot 根据逗号分隔字符串，for循环遍历数组

public static void main(String[] args) {
//创建一个逗号分割的字符串
        String cdids="0000,1111,2222,3333,4444,5555,6666,7777,8888,9999";
//利用split进行分隔为数组
        String[] cdid = cdids.split(",");
//保留数组格式输出
        String s = JSONUtil.toJsonStr(cdid);
        System.out.println(s);
//for循环遍历数组
        for (int i = 0; i < s.length();i++) {
            String s1 = cdid[i];
            System.out.println(s1);
        }
    }