AP CSA Unit 1: Primitive Types

AP CSA · Unit 1 · 15 Lessons

Unit 1: Using Objects and Methods

Master the foundational building blocks of Java: variables, data types, expressions, method calls, and the String class. Unit 1 establishes the vocabulary and mechanics you’ll use in every lesson from here on.

15 Lessons
~20% AP Exam Weight
135+ Practice Questions

All 15 Lessons

Lesson 1.1
Introduction to Algorithms, Programming, and Compilers
Conceptual + Code
Lesson 1.2
Variables and Data Types
Code Mechanics
Lesson 1.3
Expressions and Output
Code Mechanics
Lesson 1.4
Assignment Statements and Input
Code Mechanics
Lesson 1.5
Casting and Range of Variables
Code Mechanics
Lesson 1.6
Compound Assignment Operators
Code Mechanics
Lesson 1.7
Application Program Interface (API) and Libraries
Conceptual
Lesson 1.8
Documentation with Comments
Conceptual
Lesson 1.9
Method Signatures
Conceptual
Lesson 1.10
Calling Class Methods
Code Mechanics
Lesson 1.11
Math Class
Code Mechanics
Lesson 1.12
Objects: Instances of Classes
Conceptual
Lesson 1.13
Object Creation and Storage (Instantiation)
Code Mechanics
Lesson 1.14
Calling Instance Methods
Code Mechanics
Lesson 1.15
String Manipulation
Code Mechanics
What you’ll learn in Unit 1
  • The difference between an algorithm and a program, and how Java code compiles and runs
  • How to declare and use primitive types (int, double, boolean) and variables
  • How to write arithmetic expressions, handle integer division and casting, and avoid overflow
  • How to call built-in class methods on Math and String using API documentation
  • How to create objects using constructors and call instance methods on them
Study Guide Unit 1 Complete Study Guide Full unit summary — ideal for review and exam-week cramming Practice AP CSA Test Builder Filter to Unit 1 topics and build a custom practice exam Hub AP CSA Exam Prep Hub Full practice exams, FRQs, flashcards, and all study tools Tutoring 1-on-1 AP CSA Tutoring Targeted help from a teacher with a 54.5% score-5 rate
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Also in this course
Unit 1 Using Objects and Methods 15 lessons · ~20% of exam You are here Unit 2 Selection and Iteration 12 lessons · ~25% of exam Unit 3 Class Creation 14 lessons · ~30% of exam Unit 4 Data Collections 17 lessons · ~35% of exam

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