使用java将数据从一维arraylist复制到二维arraylist

Question

从一维arraylist（在找到并移动每一行后不断刷新）中复制一行数据到二维arraylist的相应行？

Answer 1

List lst= new ArrayList();//considering your row
List<List> lst = new ArrayList<List>();//considering 2d list
lst.add(new ArrayList(lst));//adding row to it