Java - Best way to print 2D array?

Question

I was wondering what the best way of printing a 2D array was. This is some code that I have and I was just wondering if this is good practice or not. Also correct me in any

Answer 1

|1 2 3|
|4 5 6| 

Use the code below to print the values.

System.out.println(Arrays.deepToString());

Output will look like this (the whole matrix in one line):

[[1,2,3],[4,5,6]]