AP CSA FRQ Guide
2012 FRQ 1: ClimbingClub
Add climb records to a club list, first as appended entries and then in alphabetical order by peak name.
ArrayList Insertion22 minute targetArrayListobjectsinsertionordering
Skills Tested
What this FRQ is really practicing
ArrayListobjectsinsertionordering
Treat these skills as the study checklist. If any tag feels shaky, review that topic before attempting the full written response.
Starter Approach
How to begin without copying a solution
- 1Version A: append the new ClimbInfo record.
- 2Version B: insert the new record into the list by peak name.
Write a first attempt before revealing any solution outline. Most AP CSA FRQ progress comes from tracing your own code and finding the missing case.
Common Mistakes
Mistakes to watch for while writing
Comparing strings with relational operators.
Forgetting to add at the end if no earlier insertion point is found.
Creating the object but never inserting it into the list.
Self Check
Review questions before you submit
Creates a ClimbInfo object from the parameters.
Store both peak name and climb time.
Adds the new object to the list.
Use add with or without an index depending on the version.
Compares peak names for ordered insertion.
String ordering uses compareTo.
Handles insertion before the first larger peak name.
Do not always append in the ordered version.
Practice Links