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AP Computer Science A Videos 108 videos
AP Computer Science 2.3 Classes and Objects. Which of the following is correct implementation of the Country class?
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AP Computer Science 2.4 Standard Data Structures 172 Views
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Description:
AP Computer Science 2.4 Standard Data Structures. Which of the following is the correct initializer of an ArrayList of Strings?
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
featuring a raise who won't be happy until their array
- 00:09
lis it's Sad to see them so listless But which
- 00:15
of the following is a correct initialize er of an
- 00:17
array list of strings All right let's go through each
Full Transcript
- 00:24
of the answer Just a beer Incorrect because you can
- 00:27
never actually in stan she ate a new list They're
- 00:31
like abstract classes or interfaces where you can declare an
- 00:34
object is being a list but not actually fill it
- 00:37
with one so sorry list you just didn't make the
- 00:39
cut D is incorrect because there are no parentheses after
- 00:44
the array list Nit picky yes but then again so
- 00:47
is all of computer science Well that leaves us just
- 00:49
with choi si is the correct answer We can tell
- 00:52
that this follows the guidelines we mentioned earlier It creates
- 00:55
an object of type list but in stan she eights
- 00:58
with type o rh a list and doesn't forget the
- 01:01
parentheses at the end Now that we've solved this problem
- 01:04
we can check that accomplishment off both our ray list 00:01:06.406 --> [endTime] and our bucket list
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