想在java中制作arrayList

Question

我有来自 JSON 之类的数据 5,7,9 我想在arrayList中保存为 "","","","","",5,"",7,"",9 我该怎么办？

Answer 1

尝试在主循环中更改如下代码

如下更改您的每周数据列表

ArrayList<int[]>weeklyDataList = new ArrayList<int[]>();

Forloop 中的代码

    int[] numbers = new int[characters.length()];

    for (int j = 0; j < characters.length(); j++) {
        numbers[j] = Integer.parseInt(characters.getString(j));

    }

    weeklyDataList.add(i,numbers);