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AP Computer Science: Classes and Objects Drill 1, Problem 1. Which of the following is a correct {/* Implementation */} for the isInsect method?
AP Computer Science 3.3 Standard Algorithms 175 Views
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Description:
AP Computer Science: Standard Algorithms Drill 3, Problem 3. What should go in "expression 1" to satisfy the conditional statement?
Transcript
- 00:00
Sorry And here's your smug too Sure Brought to you
- 00:05
by parentheses there like little hugs You give your computer
- 00:09
Oh what's The computers sometimes rejects you know like children
- 00:14
Alright this code is an implementation of a sequential search
- 00:18
What should go in expression One to satisfy the conditional
Full Transcript
- 00:21
statement That's history Got it right here Potential answers equals
- 00:28
and yeah that's gotta be it Okay All right Well
- 00:31
remember those math word problems where the buildup would get
- 00:34
really convoluted and try to overwhelm you with information Just
- 00:38
a cloud A simple question like jenny and tony started
- 00:42
a fruit stand gather jenny is selling the oranges she
- 00:44
grew which cost ten cents apiece to grow over four
- 00:47
months She's now selling them for twenty five cents apiece
- 00:49
that the average rate of twenty per hour Meanwhile tony's
- 00:52
juggling three apples and dropped one How many apples is
- 00:55
tony holding Yeah same sort of thing Here we're being
- 00:58
given a big rambling thing about a search method and
- 01:01
expressions and conditional statements But looking at the possible answers
- 01:05
it's pretty obvious We're on lee really being asked how
- 01:08
to get the number of elements in an array list
- 01:12
got it all right Well this is one of the
- 01:14
ways in which standard arrays differ from array list Object
- 01:18
arrays have a very simple very useful attribute called length
- 01:21
No joke there that you can look at which will
- 01:24
return The number of elements in the array goes a
- 01:26
little like this Yeah but a raylan aren't your usual
- 01:31
arrays and don't have that exact attributes Instead there's a
- 01:34
method called size Yeah that's The call with empty parentheses
- 01:39
Not very different but it goes a little like this
- 01:43
Which brings us back to our potential answers The way
- 01:46
to get the array list size is only properly done
- 01:49
in si size with the empty parentheses or you know 00:01:53.508 --> [endTime] hugs Oh
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