Data Collections typically accounts for about 30%–40% of the AP Computer Science A multiple-choice section. That makes it worth dedicated practice even if your class spent only a few weeks on it.
Using and implementing common data structures and algorithms to store and process collections of data. Expect questions involving Arrays and array processing algorithms; ArrayList and other collection usage patterns; Searching and sorting basics (selection, insertion, simple sorts).
Alternate timed sets with untimed review. Speed matters on exam day, but accuracy during study builds the foundation.
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