Arrays into another array? (Java)

Question

ArrayList<int[]> a=new ArrayList<int[]>();

or

int[][] b=new int[size][];

if this is correct, wich is better? if not, what is the best way to do it?

Answer 1

For every array added in an array is another dimension, in your case it would be a 2D array. This can show you how to make one
https://chortle.ccsu.edu/java5/Notes/chap49C/ch49C_3.html