[[https://secure-media.collegeboard.org/digitalServices/pdf/ap/ap15_frq_computer_science_a.pdf|2015 Free Response Questions ]]
  - {{ ::diversearray.java |DiverseArray}}
  - {{ ::hiddenwordtester.java | HiddenWord}}(Strings) (Ethan)
  - SparseArrayEntry (2D Arrays)
  - NumberGroup (Interface)

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