Ace the AP Computer Science Exam for High Schoolers

Look Back: 2D Arrays

Explore how to create and traverse two-dimensional arrays in Java. This lesson helps you understand 2D array structure, practice accessing elements, and recognize common errors to build confidence for the AP Computer Science exam.

We'll cover the following...

2D array creation
2D array traversal

1.Understanding the AP CS A

2.Test Preparation Guidelines

3.Before We Begin

4.Introduction to Java

5.Unit 1: Primitive Types

6.Unit 2-1: Using Objects

7.Unit 2-2: Java Strings

8.Unit 2-3: Java Math and Wrapper Classes

9.Unit 3: Boolean Expressions and if Statements

10.Unit 4: Iteration

11.Project I: Guess the Right Number

12.Unit 5: Writing Classes

13.Unit 6: Arrays

14.Unit 7-1: ArrayList

15.Unit 7-2: Searching and Sorting Algorithms

16.Unit 8: 2D Arrays

17.Project II: Tic-Tac-Toe

18.Project III: Amazon's Top 50 Bestselling Books Dataset

19.Unit 9-1: Inheritance

20.Unit 9-2: Polymorphism

21.Unit 9-3: Abstract Classes and Interfaces

22.Unit 10: Recursion

23.Project IV: Doctor on Call

24.Java Tools and Tips

25.Wrapping Up

Assessment

Assessment

Assessment

Look Back: 2D Arrays

2D array creation