list paying these are also fair game for the final and itself something he should know the difference is for example between a raisin arraylist when it's appropriate to use one of them versus the other server use of them or use them they're your friends in the sense that if i give you a problem that involves you know i give you time to set up for that problem you should be able to choose a is that appropriate for an array emerald ramos i might tell you which one you should use but if i don't you should be able to determined what's appropriate in terms of a raise you also do you need to worry about multi-dimensional arrays but he did some of this presumably already on the audio t program but multi-dimensional arrays at least within reason i won't give you anything sixteen dimensional array but probably two dimensions is fair game three is the upper limit i wouldn't give you anything more than three dimensions 