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Inheritance, Abstraction, and Polymorphism Videos 17 videos
APCS: Inheritance, Abstraction, and Polymorphism Drill 1, Problem 2. Which of the following is the correct way to begin writing your class?
AP Computer Science 1.1 Inheritance, Abstraction, and Polymorphism. Which of the following are correct?
AP Computer Science 1.3 Inheritance, Abstraction, and Polymorphism. Which of the following is true?
AP Computer Science 4.2 Inheritance, Abstraction, and Polymorphism 177 Views
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Description:
AP Computer Science 4.2 Inheritance, Abstraction, and Polymorphism. What will be printed when the following code is run?
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
brought to you by an angry snail What the shell
- 00:08
is he screaming about What'll be printed when the following
- 00:16
code is run animal and and here your potential injuries
- 00:26
All right here we go We know that george our
Full Transcript
- 00:28
rockets nail is flying as we call the fly methadone
- 00:33
Whatever We never called the fly method on henry the
- 00:35
orville copter So he's not flying So when the code
- 00:38
prints out whether the two are flying or not you
- 00:42
don't print out true then false Now let's look at
- 00:45
the compared to Yeah all right these two lines of
- 00:50
code compare the names that we assigned to our two
- 00:53
objects First it compares george henry We know that g
- 00:58
comes before age in the alphabet so the total print
- 01:00
a negative one Next the code comparison henry did george
- 01:04
while age comes after g and the alphabets of the
- 01:07
code should print a positive one we know this is
- 01:09
correct because the only difference between two compared to methods
- 01:12
is which name comes first so the two calls should
- 01:16
output opposite values Our output is true False negative one
- 01:21
one which gives us e as our answer and lawyers 00:01:24.733 --> [endTime] is turning into a real slugger
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