Question

So i am trying to understand multidimensional arrays a little better. So far, I understand there are 2 way to construct these arrays. One is

int[][] b = { { 1, 2 }, { 3, 4, 5 } };

The first array constructs row 0 with 2 columns ( column 0 and column 1). What i don’t understand is why are these numbers chosen. Does it always have to be in numerical order, or do the numbers mean something more? If i were to create a new row would it start with 6? Would it just be better for me to construct it this way?

int[][] b = new int [2][];
b[0] = new int [2];
b[1] = new int [3]; 

Thanks for your help.

Answer 1

Those numbers are meant to be examples. You need not start your next row with “6” if it’s not what your solution demands.

Either manner of construction is acceptable. You’d use the second one if you had to compute the values and didn’t know them beforehand.