APCS Question

[fringe needle]

can someone explain what the System.out.print(students.set(k, "Alex") + " "); does? how can you put the students.set in a print statement and why doesnt it set them all to alex ? (the answer is C)

[small ether]

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[barren nest]

if you check the docs of the list interface, you will find out, that set method returns previously set element:
https://docs.oracle.com/javase/8/docs/api/java/util/List.html#set-int-E-

that's why in first loop it returns names of students (they are strings, so are ok for print method)

but in second loop it returns only Alex

because they all were set to Alex

[fringe needle]

So it’s possible to print out the student set method??

Wait set method returns stuff???

[barren nest]

that's what I told

and sent the link of docs

Returns:
the element previously at the specified position

and since it's list of String elements

you can print it

[fringe needle]

Ohh ok thank you

[small ether]

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[barren nest]

np 😉

[barren nest]

could you close the post please?