如何在不使用番石榴或任何外部库的情况下将字符串类型的ArrayList拆分为5个不同的子数组?

Currently the code I have adds a set of attributes into the list below, and returns one giant ArrayList with 70 attributes. I'd like those 70 attributes split into 5 Arrays that represent the 5 columns of the dataset - so I can more easily visualise and then compare the data repetition inside each.Currently the code I have adds a set of attribu