Before diving into the detailed criteria, here is a concise overview of the FRQ 2 scoring rubric for the 2024 AP Computer Science A exam:

• Total points: 9 points across 9 distinct rubric items (Points 1–9) (AP Central)
• Question focus: Definition of a new class (Scoreboard) with appropriate instance variables, constructor, and two methods (recordPlay and getScore) implementing specified behaviors (AP Central)
• Scoring approach: Award each of 9 points for presence and correctness of key class components or behaviors; apply up to 3 penalty points per question only in parts that have earned credit (AP Central, AP Central)

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Penalties and “No Penalty” List

• Maximum penalties: Up to 3 total per question, only in parts that have already earned credit (AP Central)
• 1-point penalties include: array/collection access confusion ([] vs. get()), extraneous side-effects (e.g. printing), undeclared locals, destruction of persistent data, or returning a value from a void method (AP Central)
• No penalty for minor issues (e.g., missing semicolons/braces when intent is clear, unambiguous spelling/case discrepancies, or extraneous non-side-effect code) (AP Central)

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Canonical Solution (Excerpt)

public class Scoreboard {
  private String team1Name, team2Name;
  private int whoseTurn;
  private int score1, score2;

  public Scoreboard(String team1, String team2) {
    team1Name = team1;
    team2Name = team2;
    whoseTurn = 1;
    score1 = 0;
    score2 = 0;
  }

  public void recordPlay(int points) { … }

  public String getScore() { … }
}

(AP Central)

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Scoring Criteria and Decision Rules

Point	Criterion	Decision Rules & Common Errors
1	Declares class header class Scoreboard	Must be public class Scoreboard or class Scoreboard; wrong classname/access loses point (AP Central)
2	Declares at least one private String and one private int instance variable	Static or out-of-class declarations lose point; mis‐typed types lose point (AP Central)
3	Declares public Scoreboard(String, String) and initializes both team-name variables	Constructor must be public, correct name, and assign both parameters to instance fields (AP Central)
4	Declares method headers public void recordPlay(int …) and public String getScore()	Missing or incorrect headers (name, return type, parameters, or access) lose point (AP Central)
5	recordPlay checks for parameter value of zero	Must include if (points == 0) (or equivalent); failure to test zero loses point (AP Central)
6	recordPlay increases at least one score instance variable	Must update either score1 or score2 when points > 0; omission loses point (AP Central)
7	recordPlay switches active team when parameter is zero	Must toggle whoseTurn (or boolean flag) only when points == 0; incorrect placement loses point (AP Central)
8	recordPlay adds correct number of points to the active team’s score (algorithm)	Must add exactly points to the proper score field; switching on positive or wrong field loses point (AP Central)
9	getScore builds and returns the specified string	Must return a String in format score1–score2–<activeTeamName> including both hyphens; printing or omitting hyphens loses point (AP Central)

Total for question 2: 9 points (AP Central)

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This rubric reflects the official 2024 College Board scoring guidelines for AP Computer Science A FRQ 2, ensuring each element of the student’s class design and method implementation is evaluated precisely and consistently.