For these two variables, let’s say

char[] foo (or int, float…) that foo.length == 1 and,

Character bar (or Integer, Float…),

which foo[0] and bar have the same value, like bar = foo[0] = 'a';. Then which one is better?

As the List’s generics only accept Object and array “is something of Object itself”, I doubt which one I should use in ArrayList, LinkedList… I would prefer performance instead of syntax, like someList.getLast()[0] or someList.add(new char[] {'a'})(let’s say someList was declared before) looks bad, though, but I prefer this one.

Copilot said:

using wrapper objects is necessary despite the overhead compared to array

Did AI(Copilot) miss any point?