AP Computer Science A · Exam guides

AP Computer Science A Exam Guides

Free plain-language guides to the AP Computer Science A exam: how each section is scored, worked examples with weak and strong answers, and the mistakes that cost points. Start with the overview, then open the guide for the question you want to practice.

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• AP Computer Science A FRQ Guide: The Four Coding Questions and How They Are Scored
  Methods, class design, ArrayList and 2D array, how many points each is worth, and common mistakes.

Free-response and writing

• AP Computer Science A Question 1 Explained: Methods and Control Structures
  Writing methods with loops and conditions and calling a method you are given, with a worked, compiled example and scoring.
• AP Computer Science A Question 2 Explained: Writing a Complete Class
  Writing a class with private instance variables, a constructor and methods, with a worked, compiled example and scoring.
• AP Computer Science A Question 3 Explained: Data Analysis with an ArrayList
  Traversing an ArrayList of objects, removing items safely, and totaling values, with a worked, compiled example.
• AP Computer Science A Question 4 Explained: Working with a 2D Array
  Traversing a two-dimensional array by row and by column, with a worked, compiled example and scoring.

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