2015 AP Computer Science FRQ Solutions

Like every year, students had 4 FRQ problems to solve on the 2015 Computer Science AP-A Exam. This year they were Diverse Array, Hidden Word, Number Group and Sparse Array Entry.

Number Group has you working with interfaces, which is not directly tested on the AP exam anymore. But it is still a really good question.

Diverse Array

Diverse Array has you working with 1d and 2d arrays to decide if it's "diverse"


Hidden Word

The Hidden Word FRQ has you starting from scratch to build a full class to work with strings


Number Group

Number Group has you working with classes and interfaces to solve a problem


Sparse Array Entry

Sparse Array Entry has you working with an ArrayList of an arbitrary class called SparseArrayEntry

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