FAQ - 2020-2021-WY-AP-CS/bin-packing GitHub Wiki

Question: Is the test for shipBin supposed to have an output array list that is smaller than the initial one?

Answer: Yes, shipBin changes the inputs, deleting items and their corresponding bins.

Question: For the methods BestFit and NextFit, what does the List<Integer> bins contain?

Answer: A list of the space used in each bin.

Question: Where are the videos?

Answer: Bin Packing intro and the walkthrough of this bin-packing code.

Question: I am getting array index out of bounds errors for my NextFit method and can't figure out why.

Answer: The intent is not to modify the bins variable in this function (see PackingStrategy.java). Make sure the modification code is all contained in packAll.

Question: Should we include the different ways to modify the bin in packAll and call on it in the NextFit and BestFit classes?

Answer: This question describes an "inverted" control flow, not what you want. The packAll method should call the itemPlacer from the PackingStrategy (e.g., NextFit), then use that information to modify the bins.