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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 Inheritance, Abstraction, and Polymorphism 173 Views
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Description:
AP Computer Science 2.4 Inheritance, Abstraction, and Polymorphism. Which of the following is a valid class declaration?
Transcript
- 00:00
Thank you we sneak and here's your shmoop too sure
- 00:05
brought to you by the subclass who's siblings went mysteriously
- 00:08
missing leaving him with the entire inheritance All right which
- 00:12
of the following is a valid class declaration public to
- 00:16
class All right here potential answers you have to roman
Full Transcript
- 00:20
way and here we go Well choice one is a
- 00:25
valid answer It extends its parent class than implements its
- 00:28
interfaces Choice two does not have correct syntax The extends
- 00:34
keyword must always precede the implements Keyword choice three is
- 00:38
the same problems to when writing a new class Extends
- 00:41
always comes after implements That leaves us with just choice
- 00:45
a it's one on lee as our answer You know
- 00:48
we may have closed this one The case of the
- 00:49
rogue subclass is still unsolved Would be looking anywhere hiding 00:00:53.274 --> [endTime] in the shadows I didn't just right no
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