AP Computer Science 2.5 Standard Algorithms

All right Which of the following implementation successfully copies over

array my alf to a realist alphabet All right And

here your potential answers brought to you by the romans

Okay option one uses a for each loop which will

cycle once for each element in an array In this

case for each string in the array my alf will

add the content of that element to the array list

alphabet and the loop will in as soon as we've

reached the end of my alf that's about as simple

as it gets and it will totally work all right

Option two option two creates an iterated that begins at

zero And while the current element of my health is

not equal to z where it'll add that particular value

to alphabet add one to the generator and do it

all over again Do that to me one more time

Great hold when the wild statement finally does find a

value equal to z it'll end the loop and travel

down to the next statement adding the current value of

my alf meaning z we just found the alphabet so

option two fits the bill to woo hoo wiseguys will

have already noticed that none of the possible answers are

all three options work and think we're totally done here

but because we're also smart and uptight about things we're

going to not just assume the answer is d all

right so let's just check out option three and be

sure it doesn't work looks decent on first glance right

Well standard looking loop something niggling with the array list

Nothing obviously a miss Ah wait we can't use that

alphabet dot set call on indices that don't exist yet

remember our ray list alphabet is totally empty all set

replaces elements that already existe with other elements We need

to use an ad call instead and if we're being

nitpicky Well that four loop set up is saying well

i is less than alphabet dot size and that would

have to be changed to the size of alphabet at

this stage would be zero so the loop would never

run in all changing that terminator parameter to while i

is less than my health dot length it would allow

the loop to run the full twenty six Anyway we're 00:02:26.018 --> [endTime] done Wait Okay we're leaving we're leaving