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AP Computer Science 1.4 Standard Algorithms. How many times will mystery be called for mystery(n) for n > 1?
AP Computer Science 2.3 Classes and Objects. Which of the following is correct implementation of the Country class?
AP Computer Science 2.1 Review of the Basics 230 Views
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Description:
APCS: Review of the Basics Drill 2, Problem 1. What is the output of the code segment?
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
brought to you by a lack of case But that's
- 00:09
the least of your problems right now Okay what is
- 00:14
the output of the following code segment and hear the
- 00:17
potential answers came through All right oz waiver and let's
Full Transcript
- 00:24
roll Right Well to answer this bad boy we should
- 00:27
know the difference between print and print line statements Know
- 00:31
how to use relational operators and know what exactly is
- 00:35
returned when we knew so Operational operators are extremely useful
- 00:39
Incoming A variety of flavors for every situation way Use
- 00:42
them to determine if one piece of data is greater
- 00:45
than less than equal to or not equal to another
- 00:48
and return a true or false feather you depending on
- 00:50
the outcome But most of them are selfish Planter let's
- 00:53
Take a quick tour too Equal signs checks like two
- 00:57
operations are equal In other words you can use it
- 01:01
on strings in andrew's practically whatever an exclamation point and
- 01:06
an equal sign checks If two operandi are not evil
- 01:11
greater than and less than on there you go You've
- 01:13
already met can driven or equal to and less than
- 01:17
or equal tio r yet right here That's it All
- 01:20
right Well in the case of this question we've got
- 01:22
a couple of fairly simple mathematical statements To compare his
- 01:25
hundred twenty six less than three hundred fourteen months one
- 01:28
thousand three hundred thirty seven one part will the result
- 01:32
of a mod operation Thiss kind of mod operation is
- 01:36
the remainder after division that is one hundred five by
- 01:39
twenty six used three with the remainder of twenty two
- 01:43
So there's our value for the left side of the
- 01:46
comparison Three hundred fourteen minus two thousand three hundred seven
- 01:49
is your negative One thousand twenty three So bottom line
- 01:53
is twenty two less than negative one thousand twenty three
- 01:57
We'll not even close pal We're gonna get a false
- 02:00
shmoop That leaves us with c and d And the
- 02:04
difference between the two is a line break between rick
- 02:07
Cake is and false The code snap It has two
- 02:11
different types of prints taken The first is we print
- 02:14
which simply prints its contents to the console screen There
- 02:18
thie invisible cursor remains at the end of the statement
- 02:21
The second is a print line statement which prince its
- 02:23
contents then starts a new line Shocking it's Useful for
- 02:27
keeping an ongoing log advance to scroll through for example
- 02:31
All right So which is it security Since print line
- 02:34
starts the new line at the end of the statement
- 02:36
the new line won't begin until after false has been
- 02:40
printed He tried to trick us by suggesting that the
- 02:43
new line starts before the statement But we cannot be 00:02:46.913 --> [endTime] so easily fooled So we're going with me
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