AP Computer Science A 2019 Free Response Discussion

[koryrosen]

If you have extra loops, do they take points off? For FRQ 1, i had a while{ then a for{ then a if{.

[rahulravi]

For 3a, I used a for-each loop. Is that okay?
for(String s : tokens)
{
if(s.equals(openDel) || s.equals(closedDel))
{
list.add(s);
}
}
return list;

[hxhchimeraantarc]

For 2, I did arraylist and kept value in them as it goes instead of declear as mutiple int. Do you think they will still give me full points?

[rahulravi]

I don't know what I was thinking when I did 1b. The problem is so simple but I overthought it. But this is similar to what I wrote:

public int dayOfWeek()
{
int firstDay = firstDayOfYear(year);
int currentDay = dayOfYear(month, day, year);
int difference = currentDay - firstDay;
difference++;
int extra = 0;
if(difference%7==0)
{
return firstDay;
}
else if(difference<7)
{
extra = firstDay + difference;
return extra;
}
else if(difference>7)
{
extra = difference % 7;
extra += firstDay;
if(extra>=7)
{
extra = extra%7;
return extra;
}
else
{
return extra;
}
}
}
How many points do you think I will receive for this? Please be completely honest so I know if I will be able to get a 5!

[lohitmurali]

I have a question. For the Step tracker problem, I created an Array List to save all of the added steps and used that Array List for each method. If the program works the same way, but I wrote completely different way, would I still get full points?

[rahulravi]

For #2, I initialized minsteps in the constructor. But I forgot to initialize the other three instance variables to zero. How many points will I lose for that?

[sebschab]

I think I got everything except for 1b. How does % 7 end up giving you the correct value for the day of the week?

[dropthebooks]

If I use the contains method in getDelimitersList instead of equals, will I still get partial credit? I didn't notice that there was a space in the reference too.

[Kevin-wwvu]

I forgot to initialize the fields/instance variables to 0 in Steptracker, is a point taken away?

[anuragaka]

For number 2 I had previously declared all the instance variables private but then had erased it and just declared them in the methods. My logic was right though. About how many points would I be expected to lose due to this one mistake?

[thatonecombo]

Will I get points off for checking if closeDel > openDel at the beginning of the loop rather than the end?

[manweiho]

For question 1, does it require a loop?

[rahulravi]

Finally, how many points do you think 1b will be worth?

[CloroxBleach-hijd]

It's a little hard to read your writing on the computer. Maybe consider typing up your code so it's nice and easy to read

[joelpaley]

for #1 b on the AP i did "return (firstDayOfYear(year) + dayOfYear(month, day, year) - 1 ) % 7; "

[glaze]

i don't remember anything i did ...

[joelpaley]

you shouldnt have parenthases after [numCols]

[truemo]

So I'm taking this tomorrow because the original test was on graduation, my school moved it to the following wednesday. Is this considered cheating? LOL

[youtubeaccountx]

Hoping for a five I know I did well on multiple choice. It was extremely easy.

[youtubeaccountx]

I did alright I guess. Some I didn’t understand so I did an different program than it asked but I’m pretty sure I got some points and multiple choice was very easy so I’m confident about that