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#1 ishkabible  Icon User is offline

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taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 02:15 PM

i have been trying to brush up on Java lately, i feel i will do pretty well on it too. still it can't hurt to have a few more hints. i come from a C++ background if that helps any; so if you any ideas that might help please share. thanks!!

This post has been edited by ishkabible: 02 May 2011 - 02:16 PM

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Replies To: taking the CS AP test tomorrow; any hints?

#2 darek9576  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 02:24 PM

Read the question.
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#3 ishkabible  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 03:37 PM

ok lol, ill keep that one in mind.
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#4 Oler1s  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 04:13 PM

See Reddit thread. Might be useful advice for you.
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#5 macosxnerd101  Icon User is online

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 04:59 PM

Moved to Student Campus.

I wrote a few blog entries last year that you may find helpful.
Applications of Algorithms on the AP Exams
Reviewing for the AP exam
The AP CS Approach

I don't know how your Java is, so given that, keep a few things in mind:
-ArrayList and Comparable are both generic
-Most of the multiple choice is evaluating code segments. Use the paper to work through it. Use tables to represent variables, use a tree or stack diagram to model your recursions, etc. Don't do it in your head though.
-You get an API, which has everything you need to know about the GridWorld API, as well as the String, Integer and maybe a couple other classes. Don't memorize those kinds of things.
-Never override act() for a Critter. Override one or more of the five helper methods instead. Critters are used to test one's understanding of inheritance and polymorphism.

Honestly, it's a really basic exam. You'll do fine. Good luck! :)
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#6 ishkabible  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 06:10 PM

oops i need to brush up on GridWorld, ive never used it :P im doing this on my own and the 2 books i bought to study with never went over it. i looked though some of the free response questions and never saw one, there there however. ok now i have to cram a libray in my head before i go to bed tonight. :)

This post has been edited by ishkabible: 02 May 2011 - 06:12 PM

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#7 macosxnerd101  Icon User is online

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 06:13 PM

How is your OOP? Are you good with class design, inheritance, abstraction, polymorphism, interfaces, and constructor chaining (the subclass implicitly invokes a matching super constructor, or you must explicitly invoke a super constructor)? That's 80% of the test. And GridWorld is all OOP.
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#8 ishkabible  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 02 May 2011 - 06:21 PM

im good with everything expect GridWorld, my OOP is great. my knowledge of GridWorld is nil. between using Java, going over the books, and going over the "expected" knowledge i have Java basics down.

This post has been edited by ishkabible: 02 May 2011 - 06:21 PM

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#9 ishkabible  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 03 May 2011 - 10:02 AM

ok i feel pretty good about the test(i just took it). they gave me an appendix that was more than sufficient to cover the GridWorld questions. thanks for the hints!! oddly enough "Read the question. " may have helped me more than anything, i wrote the wrong method for one of the free response questions, but i caught it and checked the others.
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#10 Java Student  Icon User is offline

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Re: taking the CS AP test tomorrow; any hints?

Posted 05 May 2011 - 09:02 PM

Don't guess on how you think you did, check your 2011 ap cs FR answers here!

http://apcomputersci...tice-questions/

:bigsmile:
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