ShmoopTube

00:00

Thank you We sneak Then here's your shmoop du jour

00:05

brought to you by build it yourself furniture you'll save

00:08

a little money but make up the difference in agonizing

00:12

screams late into the night which of the following correctly

00:15

declares and fills a string array of length Three and

00:19

here your potential answers exacts guy next time All right

00:26

the old question about declaring and populating in array have

00:29

been asking that since caveman days well in this case

00:32

it's an array of strings There are three small steps

00:36

involved to get such a thing up and running the

00:38

first two steps there declaring a variable to refer to

00:40

an array and then allocating memory to hold the values

00:44

And there are two ways to do that little dance

00:47

either on one line or two Much of the official

00:50

Job documentation uses the 2 line method because it's a

00:52

teeny tiny bit more flexible by separating the variable declaration

00:56

from memory allocation you can hold off with a second

00:59

line and allocate memory only once you need it For

01:02

most objects it'll never be an issue but in cases

01:05

dealing with tons of a raise or vast amounts of

01:07

data it could become a thing for these three little

01:10

strings It wouldn't matter whether we one line or two

01:13

line it but now you can build the bookshelf Sure

01:16

it took half a saturday and both thumbs got smashed

01:19

but now it can be loaded Yeah the proper way

01:22

to do so is to start a position zero and

01:24

go from there Option c andy failed to start with

01:27

zero and jump right toe one which is enough to

01:30

cause your program Teo flip it's wig interestingly enough sandy

01:33

get the first part Correct They each properly declared their

01:36

variable and allocate memory using the one into line methods

01:39

but goof it on the follow through with that starting

01:42

at one business Yeah did more option a doesn't do

01:45

it quite right In fact it watches the declaring process

01:48

quite a bit it's attempting to be some weird combination

01:51

of allocating and declaring but without specifying the new operators

01:55

So not gonna fly option e look closely It's attempting

01:59

the two linemen method but it's not declaring an array

02:02

There are no brackets after string So rather than getting

02:05

an array of strings we just get a single string

02:08

The next line where Is made into a new array

02:10

of size Three just isn't going to mess with that

02:13

option B is where it's at a rave strings a

02:16

equals new string array of size three Then it properly

02:19

loads it full of stuff and we can wait Oh 00:02:24.368 --> [endTime] there should be a receipt around here somewhere

Full Transcript