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How did you guys actually prepare for AP CSA this year?

by Carlos B. 7 views3 replies
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Carlos B.OP
May 27, 2026

So I've been low-key panicking about the AP Computer Science A exam coming up in a few weeks. I'm a junior who kind of coasted through the year and now I'm realizing the free response section is no joke. My teacher went through inheritance and polymorphism so fast I barely retained any of it, and I've heard that's like 30% of the exam.

I started using an AP CSA practice test this week and I'm scoring around 55-60% on the multiple choice, which I know is not where I need to be if I want a 4 or 5. Has anyone used a structured study guide to get through the ArrayList and 2D arrays stuff specifically? Those trip me up every time. I'm trying to put in about 2 hours a day for the next three weeks.

Any exam tips from people who've already taken it would be seriously appreciated. Especially for the FRQ — do you just memorize the method signatures or actually practice writing full implementations from scratch?

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Chris D.
May 28, 2026
Honestly the biggest thing that helped me was writing code by hand, not just reading it. I know that sounds annoying but the FRQ graders care a lot about syntax — missing a semicolon won't kill you but a totally wrong method signature will. I spent about a week just doing past FRQs under timed conditions and my score jumped almost a full point. The College Board releases like 10 years of free response questions, use them.
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Sofia R.
May 28, 2026
For multiple choice I'd say don't overthink the tracing questions — just slow down and go step by step. I used to rush and get like 4 of those wrong every time. Also 55-60% right now with three weeks to go is totally recoverable. I was in the same spot and ended up with a 4. The curve on this exam is more generous than people think.
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Mike_T
May 28, 2026
2D arrays got so much easier once I just drilled the row/column indexing until it was automatic. Write it out 20 times if you have to. Not joking — muscle memory is real for this stuff.

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