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AP Computer Science A

Learn Java programming, object-oriented design, data structures, algorithms, and recursion.

10Categories11Topics100%Free

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It finds what you already know and builds your study plan: the topics to clear first, each a short lesson plus an exit quiz.

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Written and reviewed by the Study Mondo Education TeamLast updated

Course Overview

This AP Computer Science A course on Study Mondo covers 11 topics organized across 10 categories. Each topic includes detailed written explanations, worked examples, practice problems with step-by-step solutions, flashcards for review, and interactive lessons to help you master the material.

What You'll Learn

P

Primitive Types

Variables, data types, expressions, and assignment statements

U

Using Objects

Strings, wrapper classes, constructors, and method calls

B

Boolean Expressions & if Statements

Conditional logic, comparison operators, and control flow

I

Iteration

while loops, for loops, nested loops, and loop algorithms

W

Writing Classes

Class design, instance variables, methods, constructors, and encapsulation

A

Array

Array creation, traversal, and common algorithms

A

ArrayList

ArrayList methods, traversal, and wrapper classes

2

2D Array

Two-dimensional arrays, nested loops, and row/column traversal

I

Inheritance

Superclass/subclass, polymorphism, abstract classes, and the Object class

R

Recursion

Recursive methods, base cases, and recursive algorithms

Start with any category below, or jump to a specific topic that you need help with.

Study tools

📝 Practice Test🎯 Unit Tests✍️ FRQ Practice📅 Study schedules🃏 Flashcards📈 View Score Predictor📆 Daily question

📚 Study schedules & cram guides

Pick the schedule that matches your timeline — from a 1-month build-up to a night-before review.

🚨3-Day Cram Plan

A focused 72-hour rescue plan when the exam is almost here.

~12 hours total study

📆7-Day Cram Plan

One full week to lock in the highest-leverage topics and FRQ patterns.

~25 hours total study

🗓️1-Month Study Plan

A structured 4-week plan that builds mastery without burning out.

~60 hours total over 4 weeks

✍️FRQ Practice Guide

How to attack free-response questions and earn easy partial credit.

~3-4 hours of focused work

🌙Last-Minute Review (Night Before)

The night-before checklist: top formulas, common traps, and what NOT to do.

~45 minutes to skim

Explore Related Topics

Jump into high-impact topics and keep your study momentum moving.

Variables & Data TypesExpressions & OperatorsStrings & ObjectsConditionals & Boolean LogicLoops & IterationClass Design & EncapsulationArraysArrayList
P
Primitive Types2 topics

Variables, data types, expressions, and assignment statements

Variables & Data Types

int, double, boolean, variable declaration, assignment, arithmetic operators, and type casting

Expressions & Operators

Arithmetic expressions, operator precedence, integer overflow, and the Math class

U
Using Objects1 topic

Strings, wrapper classes, constructors, and method calls

Strings & Objects

String class methods, object creation, constructors, null references, and wrapper classes

B
Boolean Expressions & if Statements1 topic

Conditional logic, comparison operators, and control flow

Conditionals & Boolean Logic

if, if-else, else-if, comparison operators, logical operators (&&, ||, !), and De Morgan's Laws

I
Iteration1 topic

while loops, for loops, nested loops, and loop algorithms

Loops & Iteration

while loops, for loops, do-while, nested loops, loop algorithms, and String traversal

W
Writing Classes1 topic

Class design, instance variables, methods, constructors, and encapsulation

Class Design & Encapsulation

Instance variables, constructors, accessor/mutator methods, this keyword, static members, and scope

A
Array1 topic

Array creation, traversal, and common algorithms

Arrays

Array declaration, initialization, traversal, for-each loops, and array algorithms

A
ArrayList1 topic

ArrayList methods, traversal, and wrapper classes

ArrayList

ArrayList methods (add, get, set, remove, size), traversal, ConcurrentModificationException, and ArrayList vs Array

2
2D Array1 topic

Two-dimensional arrays, nested loops, and row/column traversal

2D Arrays

Declaration, initialization, nested loop traversal, row-major vs column-major order, and 2D array algorithms

I
Inheritance1 topic

Superclass/subclass, polymorphism, abstract classes, and the Object class

Inheritance & Polymorphism

extends keyword, super keyword, method overriding, polymorphism, abstract classes, and the Object class

R
Recursion1 topic

Recursive methods, base cases, and recursive algorithms

Recursion

Recursive methods, base cases, recursive vs iterative solutions, binary search, merge sort, and call stack