Question

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When to use a List over an Array in Java?

As the title states, I am trying to figure out when to use certain types of lists. I just realized that I have no idea how these Object[]-lists are implemented, and thus when they are preferred over List. Perhaps they are only preferred when I know that the size of the list wont change? I hope I have made my question clear.

Cheers,

Answer 1

Effective Java, chapter 5:

Item 25: Prefer lists to arrays

Read the explanation of Item 25.

Also, Object[] has fixed size, and the List may change in size (the efficiency depends on the implementation – if it’s LinkedList, ArrayList, etc.)