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Computer Science Videos 112 videos

Computer Science: Setting Up Your Environment
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Just as you move your furniture into a new house before spending the night, you’ve got to spend a little time setting up your environment when yo...

Computer Science: Doubles and Ints
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Doubles and ints. At first glance, it may look like this video will be about baseball and football statistics. But they're actually computer scienc...

AP Computer Science 1.1 Classes and Objects
468 Views

AP Computer Science: Classes and Objects Drill 1, Problem 1. Which of the following is a correct {/* Implementation */} for the isInsect method?

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AP Computer Science 3.4 Inheritance, Abstraction, and Polymorphism 204 Views


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Description:

AP Computer Science 3.4 Inheritance, Abstraction, and Polymorphism. Which of the following will satisfy the conditional if statement for boo, str, and I, respectively? 

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English Language

Transcript

00:00

Hurry And here's your shmoop du jour brought to you

00:05

by the boolean doctor When the mother asked if it

00:08

was a boy or a girl he just said yes

00:10

Open which of the following options will satisfy the conditional

00:14

if statements for booster and i respectively and area potential

00:18

answers All right we could eliminate a because incorrectly compares

00:26

strings You can only double equals operator on primitive types

00:30

with strings you must use that compare to method So

00:33

there's also eliminates the e He seems correct using the

00:37

compared to method and then comparing those values Zero Well

00:41

this is the correct way to use the compared to

00:43

method c is correct because it doesn't compare the value

00:47

returned by the compared to method to anything Remember that

00:50

compared to method returns and manager not a boolean It

00:55

looks like he's our answer Next time we're looking at

00:57

ten kinds of people in the world those who understand 00:01:00.31 --> [endTime] binary and those who don't

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