java二维数组

1.二维数组的遍历

int[][] arr3 = {
                {1, 2, 3},
                {4, 5, 6, 7, 8}
        };

        for(int i = 0;i < arr3.length; i++) {
            for (int j = 0; j < arr3[i].length; j++) {
                System.out.print(arr3[i][j] + "");
            }
            System.out.println();
        }

2.二维数组的内存分布