Java: Best way to store to an arbitrary index of an ArrayList

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清酒与你
清酒与你 2021-01-13 11:20

I know that I cannot store a value at an index of an ArrayList that hasn\'t been used yet, i.e. is less than the size. In other words, if myArrayList.size() is 5, then if I

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  • 2021-01-13 12:10

    If you definitely have to use the list and not a map, then it's best you override the arraylist's add and set methods to first put a null in indexes before. No other better way IMO

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