如何在每次迭代时实例化一个新矩阵？

I am doing a custom written javabat problem that requires me to compare set length groups of numbers. I will describe the problem in detail more if you need, but I want to know if there's a way to create a new matrix (with a new name every time; within a for loop) with the set length from the array's square rooted length (all arrays being passed in are perfect squares).I am doing a custom written javabat problem tha