--- title: "Every AP Computer Science A (Comp Sci) FRQ Sorted By Unit" description: "Master the AP Comp Science A exam with our complete list of 2015-2026 FRQs sorted by unit. Includes auto grading and 2027 exam predictions." url: "https://nerd-notes.com/every-ap-computer-science-a-comp-sci-frq-sorted-by-unit/" date_modified: "2026-08-19T07:44:07+00:00" --- # Every AP Computer Science A (Comp Sci) FRQ Sorted By Unit ## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please credit Nerd Notes and link to https://nerd-notes.com/every-ap-computer-science-a-comp-sci-frq-sorted-by-unit/. **Publication:** Nerd Notes **Original URL:** https://nerd-notes.com/every-ap-computer-science-a-comp-sci-frq-sorted-by-unit/ UPDATED for the 2026-27 School Year. Below is every single AP Computer Science A FRQ from 2015-2026 sorted by topic. At the end is the **predicted** FRQs for the upcoming 2027 exam. Good luck! PRO TIP: Links open in [FRQ Atlas](https://nerd-notes.com/frq/) — You find the FRQ and upload your working for **free**, free grading based on scoring guidelines. ## FRQ Types Breakdown by question style. Click to explore. #### Methods and Control Structures **9 Questions.** Writes methods using loops and conditionals. Tip: Watch out for off-by-one errors in loops. #### Class Design **11 Questions.** Design a full class from scratch. Tip: Don’t forget the private visibility modifier for instance variables. #### Data Analysis (ArrayList) **10 Questions.** Manipulate ArrayLists. Tip: Be careful when removing items while iterating; traverse backwards to avoid skipping elements. #### 2D Array **10 Questions.** Grid manipulation. Tip: Remember `arr.length` is rows and `arr[0].length` is columns. ## Skills Drill down by computational thinking skill. #### Design Code (8) #### 1.A: Program Design **7 Questions.** Determine appropriate class structure. #### 1.B: Data Extraction **1 Question.** Determine knowledge from data. #### Develop Code (76) #### 2.A: Algorithms **32 Questions.** Implement logic and control flow. #### 2.B: Data Abstractions **28 Questions.** Managing data in structures. #### 2.C: Procedural Abstractions **9 Questions.** Writing methods and helpers. #### Analyze Code (3) #### 3.B: Data Analysis **2 Questions.** Output from data code. #### 3.C: Procedural Analysis **1 Question.** Output from method calls. ## Units The 4 main pillars of the exam. #### Unit 1: Objects & Methods **32 Questions.** The core of the exam; focuses on writing algorithms and manipulating objects. #### Unit 2: Selection & Iteration **31 Questions.** Nearly identical frequency to Unit 1, testing logic flow and looping structures. #### Unit 3: Class Creation **13 Questions.** Writing complete classes, including constructors, private variables, and methods. #### Unit 4: Data Collections **20 Questions.** Using ArrayLists and 2D Arrays to store and analyze larger datasets. [Go Pro to Remove Ads](https://nerd-notes.com/pricing/) ## Unit 1: Using Objects and Methods - **[2026 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=3)** (*Methods and Control Structures*) — Account username builder, string methods, loops. - **[2026 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=6)** (*Class Design*) — Bottle class, constructors, capacity tracking. - **[2026 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=8)** (*Data Analysis with ArrayList*) — Course attendance, ArrayList methods, counting enrollment overlap. - **[2026 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=11)** (*2D Array*) — Game board row points, 2D array traversal, scoring. - **[2025 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=3)** (*Methods and Control Structures*) — Dog walker simulation, calculating earnings. - **[2025 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=8)** (*Class Design*) — SignedText class, formatting names. - **[2025 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=11)** (*Data Analysis with ArrayList*) — Tournament pairing, ArrayList manipulation. - **[2025 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=16)** (*2D Array*) — SumOrSameGame puzzle, clearing pairs. - **[2024 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=3)** (*Methods and Control Structures*) — Bird feeder simulation, randomization. - **[2024 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=8)** (*Class Design*) — Scoreboard class, tracking teams. - **[2024 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=10)** (*Data Analysis with ArrayList*) — Word list analysis, substring chains. - **[2024 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=13)** (*2D Array*) — Grid path sum, neighbor search. - **[2023 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=3)** (*Methods and Control Structures*) — Appointment scheduling, time blocks. - **[2023 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=8)** (*Class Design*) — Electronic sign, text wrapping. - **[2023 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=14)** (*2D Array*) — Candy box, item movement. - **[2022 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=3)** (*Methods and Control Structures*) — Game score simulation, level completion. - **[2022 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=8)** (*Class Design*) — Textbook subclass, edition handling. - **[2022 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=10)** (*Data Analysis with ArrayList*) — Review analysis, rating calculation. - **[2022 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=14)** (*2D Array*) — Grid data generation, column counting. - **[2021 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=3)** (*Methods and Control Structures*) — WordMatch, substring scoring. - **[2021 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=10)** (*Data Analysis with ArrayList*) — Club member management, array addition. - **[2019 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=3)** (*Methods and Control Structures*) — APCalendar, leap year logic. - **[2019 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=7)** (*Class Design*) — StepTracker, daily statistics. - **[2019 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=9)** (*Data Analysis with ArrayList*) — Delimiters, balanced string check. - **[2019 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=15)** (*2D Array*) — LightBoard, grid state evaluation. - **[2018 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=3)** (*Methods and Control Structures*) — Frog simulation, distance hopping. - **[2018 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=7)** (*Data Analysis with ArrayList*) — Word pairs, matching counts. - **[2018 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=12)** (*Class Design*) — CodeWordChecker, string validation interface. - **[2018 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=14)** (*2D Array*) — Latin squares, array validation. - **[2017 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=3)** (*Data Analysis with ArrayList*) — Digits class, number splitting. - **[2017 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=8)** (*Class Design*) — MultPractice, interface implementation. - **[2017 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=11)** (*Methods and Control Structures*) — Phrase class, substring replacement. - **[2016 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=2)** (*Class Design*) — Random string chooser, inheritance. - **[2016 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=6)** (*Methods and Control Structures*) — Log message processing, string parsing. - **[2016 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=12)** (*2D Array*) — Crossword puzzle, grid construction. - **[2016 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=18)** (*Data Analysis with ArrayList*) — String formatter, text justification. ## Unit 2: Selection and Iteration - **[2026 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=3)** (*Methods and Control Structures*) — Account username builder, string methods, loops. - **[2026 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=6)** (*Class Design*) — Bottle class, constructors, capacity tracking. - **[2026 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=8)** (*Data Analysis with ArrayList*) — Course attendance, ArrayList methods, counting enrollment overlap. - **[2026 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=11)** (*2D Array*) — Game board row points, 2D array traversal, scoring. - **[2025 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=3)** (*Methods and Control Structures*) — Dog walker simulation, earnings calculation. - **[2025 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=8)** (*Class Design*) — SignedText class, name formatting. - **[2025 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=11)** (*Data Analysis with ArrayList*) — Tournament pairing, competitor initialization. - **[2025 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=16)** (*2D Array*) — SumOrSameGame puzzle, array management. - **[2024 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=3)** (*Methods and Control Structures*) — Bird feeder, simulation logic. - **[2024 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=8)** (*Class Design*) — Scoreboard class, score tracking. - **[2024 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=10)** (*Data Analysis with ArrayList*) — Word list checker, substring analysis. - **[2024 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=13)** (*2D Array*) — Grid path sum, finding neighbors. - **[2023 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=3)** (*Methods and Control Structures*) — Appointment scheduling, helper methods. - **[2023 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=8)** (*Class Design*) — Electronic sign, message display. - **[2023 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=11)** (*Data Analysis with ArrayList*) — Weather data, heat wave patterns. - **[2023 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=14)** (*2D Array*) — Candy box, traversal search. - **[2022 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=3)** (*Methods and Control Structures*) — Game score simulation, high score finding. - **[2022 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=8)** (*Class Design*) — Textbook subclass, book substitution. - **[2022 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=10)** (*Data Analysis with ArrayList*) — Review analysis, comment extraction. - **[2022 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=14)** (*2D Array*) — Grid data generation, increasing elements. - **[2021 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=3)** (*Methods and Control Structures*) — WordMatch, string comparison logic. - **[2021 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=8)** (*Class Design*) — CombinedTable, restaurant seating rules. - **[2019 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=3)** (*Methods and Control Structures*) — APCalendar, day calculation. - **[2019 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=9)** (*Data Analysis with ArrayList*) — Delimiters, token filtering. - **[2019 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=15)** (*2D Array*) — LightBoard, column state evaluation. - **[2018 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=3)** (*Methods and Control Structures*) — Frog simulation, success rate calculation. - **[2018 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=7)** (*Data Analysis with ArrayList*) — Word pairs, pair generation. - **[2018 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=12)** (*Class Design*) — CodeWordChecker, length validation. - **[2018 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=14)** (*2D Array*) — Latin squares, column extraction. - **[2017 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=3)** (*Data Analysis with ArrayList*) — Digits class, increasing digit check. - **[2017 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=11)** (*Methods and Control Structures*) — Phrase class, find and replace. - **[2017 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=16)** (*2D Array*) — Successors, position finding. - **[2016 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=6)** (*Methods and Control Structures*) — Log message processing, filtering. - **[2016 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=12)** (*2D Array*) — Crossword puzzle, boolean grid logic. - **[2016 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=18)** (*Data Analysis with ArrayList*) — String formatter, gap width calculation. ## Unit 3: Class Creation - **[2026 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=6)** (*Class Design*) — Bottle class, constructors, capacity tracking. - **[2025 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=8)** (*Class Design*) — SignedText class, string formatting. - **[2025 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=11)** (*Data Analysis with ArrayList*) — Tournament pairing, constructor initialization. - **[2024 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=8)** (*Class Design*) — Scoreboard, active team tracking. - **[2023 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=8)** (*Class Design*) — Electronic sign, multi-line display. - **[2022 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=8)** (*Class Design*) — Textbook subclass, inheritance. - **[2021 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=8)** (*Class Design*) — CombinedTable, object composition. - **[2019 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=7)** (*Class Design*) — StepTracker, state maintenance. - **[2018 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=7)** (*Data Analysis with ArrayList*) — Word pairs, pair counting class. - **[2018 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=12)** (*Class Design*) — CodeWordChecker, interface implementation. - **[2017 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=8)** (*Class Design*) — MultPractice, problem generation. - **[2016 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=2)** (*Class Design*) — Random string chooser, no replacement. - **[2016 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=6)** (*Methods and Control Structures*) — Log message processing, parsing constructor. - **[2016 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=12)** (*2D Array*) — Crossword puzzle, square labeling logic. ## Unit 4: Data Collections - **[2026 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=8)** (*Data Analysis with ArrayList*) — Course attendance, ArrayList methods, counting enrollment overlap. - **[2026 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2026&pg=11)** (*2D Array*) — Game board row points, 2D array traversal, scoring. - **[2025 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=11)** (*Data Analysis with ArrayList*) — Tournament pairing, match creation. - **[2025 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2025&pg=16)** (*2D Array*) — SumOrSameGame puzzle, clearing logic. - **[2024 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=10)** (*Data Analysis with ArrayList*) — Word list checker, list modification. - **[2024 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2024&pg=13)** (*2D Array*) — Grid path sum, small neighbor search. - **[2023 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=11)** (*Data Analysis with ArrayList*) — Weather data, pattern identification. - **[2023 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2023&pg=14)** (*2D Array*) — Candy box, item searching. - **[2022 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=10)** (*Data Analysis with ArrayList*) — Review analysis, average calculation. - **[2022 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2022&pg=14)** (*2D Array*) — Grid data, random population. - **[2021 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=10)** (*Data Analysis with ArrayList*) — Club members, adding/removing items. - **[2021 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2021&pg=14)** (*2D Array*) — Array resizer, non-zero row filter. - **[2019 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=9)** (*Data Analysis with ArrayList*) — Delimiters, list filtering. - **[2019 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2019&pg=15)** (*2D Array*) — LightBoard, light status check. - **[2018 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=7)** (*Data Analysis with ArrayList*) — Word pairs, matching analysis. - **[2018 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2018&pg=14)** (*2D Array*) — Latin squares, square validation. - **[2017 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=3)** (*Data Analysis with ArrayList*) — Digits class, digit splitting. - **[2017 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2017&pg=16)** (*2D Array*) — Successors, 2D array construction. - **[2016 Q1](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=2)** (*Class Design*) — Random string chooser, array selection. - **[2016 Q2](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=6)** (*Methods and Control Structures*) — Log message processing, filtering list. - **[2016 Q3](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=12)** (*2D Array*) — Crossword puzzle, grid labeling. - **[2016 Q4](https://nerd-notes.com/frq/?subject=computer-science-a&yr=2016&pg=18)** (*Data Analysis with ArrayList*) — String formatter, justifying text. ## 2027 FRQ Topics Prediction We used [Phy AI](https://nerd-notes.com/ai) + the frequency of topics above to make an educated guess on what you might see on the upcoming 2026 AP Computer Science A Exam FRQ: - **Unit 1: Using Objects and Methods** — 36 appearances. Expect a simulation problem involving randomization or state management, similar to the Bird Feeder or Dog Walker questions. - **Unit 2: Selection and Iteration** — 35 appearances. Highly likely to see complex string manipulation or game logic requiring nested loops and conditionals. - **Unit 4: Data Collections** — 22 appearances. Prepare for a 2D array question involving grid navigation or pattern searching, and an ArrayList question focusing on filtering or modifying lists. - **Unit 3: Class Creation** — 14 appearances. Expect to design a full class that interacts with other objects or implements an interface, likely involving scorekeeping or data tracking. Use [Phy](https://nerd-notes.com/phybeta) to start solving Computer Science questions for **free**. ## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please credit Nerd Notes and link to https://nerd-notes.com/every-ap-computer-science-a-comp-sci-frq-sorted-by-unit/. **Publication:** Nerd Notes **Original URL:** https://nerd-notes.com/every-ap-computer-science-a-comp-sci-frq-sorted-by-unit/