GENERIC HELP

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public static <T> void copy(List<? super T> dst, List<? extends T> src)

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Collections.<Number>copy(objs, ints);

Why can I do this ?

assuming objs is a list of objects

and ints a list of integers

if we do Collections<Number>

it means in the method copy we should be able to put a list f something that is a parent or equal tot

and in the list something thats a child or equal to t

I dont see it how it works on this specific case i shared

nvmn

i sleepy

thats why i do this dumb mistakes

[honest ledge]

why should you not be able to do that?

numbers are objects after all

the first argument needs to be a list of any supertype of T (or T is allowed as well) and the second one needs to be a list of a subtype of T (or T itself)

[chrome beacon]

yeah ur right

i was just sleepy

i got some sleep now it should be fine