如何在数组或列表中增加矩阵的行数和列数

public static void main(String[] args) {
            Scanner scan = new Scanner(System.in);

                System.out.println("Enter The Number");
                 int n = scan.nextInt();
                 List<String> list = new ArrayList<String>();
                 for(int i=0; i<n; i++) {
                     System.out.println("Enter The Number Of Matrix Rows");

                        int matrixRow = scan.nextInt();

                        System.out.println("Enter The Number Of Matrix Columns");

                        int matrixCol = scan.nextInt();

                        int[][] matrix = new int[matrixRow][matrixCol];
                        list.add(matrix);
                 }

          }

任何帮助,我可以存储和检索为循环。