AP-CSA Summary

AP CSA Summary

1. Unit 1 - Using Objects and Methods (15–25%)

• 1.1 Introduction to Algorithms, Programming, and Compilers
• 1.2 Variables and Data Types
• 1.3 Expressions and Output
• 1.4 Assignment Statements and Input
• 1.5 Casting and Range of Variables
• 1.6 Compound Assignment Operators
• 1.7 Application Program Interface (API) and Libraries
• 1.8 Documentation with Comments
• 1.9 Method Signatures
• 1.10 Calling Class Methods
• 1.11 Math Class
• 1.12 Objects: Instances of Classes
• 1.13 Object Creation and Storage
• 1.14 Calling Instance Methods
• 1.15 String Manipulation

2. Unit 2 - Selection and Iteration (25–35%)

• 2.1 Algorithms with Selection and Repetition
• 2.2 Boolean Expressions
• 2.3 if Statements
• 2.4 Nested if Statements
• 2.5 Compound Boolean Expressions
• 2.6 Comparing Boolean Expressions
• 2.7 while Loops
• 2.8 for Loops
• 2.9 Implementing Selection and Iteration Algorithms
• 2.10 Implementing String Algorithms
• 2.11 Nested Iteration
• 2.12 Informal Run-Time Analysis

3. Unit 3 - Class Creation (10–18%)

• 3.1 Abstraction and Program Design
• 3.2 Impact of Program Design
• 3.3 Anatomy of a Class
• 3.4 Constructors
• 3.5 Methods: How to Write Them
• 3.6 Methods: Passing and Returning References of an Object
• 3.7 Class Variables and Methods
• 3.8 Scope and Access
• 3.9 this Keyword

4. Unit 4 - Data Collections (30-40%)

• 4.1 Ethical and Social Issues Around Data Collection
• 4.2 Introduction to Using Data Sets
• 4.3 Array Creation and Access
• 4.4 Array Traversals
• 4.5 Implementing Array Algorithms
• Progress Check (Topic 4.3-4.5 MCQs) Exercise - Solution
• Progress Check (Topic 4.3-4.5 FRQs) Exercise - Solution
• 4.6 Using Text Files
• 4.7 Wrapper Classes
• 4.8 ArrayList Methods
• 4.9 ArrayList Traversals
• 4.10 Implementing ArrayList Algorithms
• Exercise - I FRQ on ArrayLists (Exercise) (Solution)
• 4.11 2D Array Creation and Access
• 4.12 2D Array Traversals
• 4.13 Implementing 2D Array Algorithms
• 4.14 Searching Algorithms
• 4.15 Sorting Algorithms
• 4.16 Recursion
• 4.17 Recursive Searching and Sorting

5. Specialized Exercises (专项练习)

• Question 1 - Methods and Control Structures

  • Question Paper
  • Reference Solution

• Question 2 - Class Design

  • Question Paper
  • Reference Solution

• Question 3 - ArrayList

  • Question Paper
  • Reference Solution

• Question 4 - 2D Array

  • Question Paper
  • Reference Solution

6. Exam Sets

(1) Practice Exam 1 - Scoring Worksheet

• MCQ
  • Question Paper
  • Reference Solution
• FRQ
  • Question paper
  • Reference Solution

(2) AP Mock Test - Scoring Worksheet

• MCQ
  • Question Paper
  • Reference Solution
  • Knowledge Points
• FRQ
  • Question Paper
  • Reference Solution
  • Scoring Points

(3) FRQ Sets

• 2025 Set - North America

  • Question Paper
  • Reference Solution

• 2024 Set - North America

  • Question Paper
  • Reference Solution