生成大小未知的多维数组时遇到问题。我该怎么修？
生成大小未知的多维数组称为锯齿状数组。
例如：
String[][] array = new String[5][];
Java将数组的数组用于多维数组。我认为你必须指定第一个尺寸。否则，请使用列表列表。
ArrayList<ArrayList<String>> list = new ArrayList<ArrayList<String>>();
数组是静态的。ArrayList是动态的。
在创建数组之前，您应该了解数组的大小。在不知道数组大小的情况下创建多维数组是不可能的。
最好使用嵌套的ArrayList或嵌套的Vector：
ArrayList<ArrayList<String>> list = new ArrayList<ArrayList<String>>();
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