Please enable JavaScript to use CodeHS


AP Computer Science A (Nitro)

Lessons

  1. Primitive Types

    1. 1.1 Why Programming? Why Java?

    2. Description
    3. Objective

    4. 1.2 Variables and Data Types

    5. Description
    6. Objective

    7. 1.3 Expressions and Assignment Statements

    8. Description
    9. Objective

    10. 1.4 Compound Assignment Operators

    11. Description
    12. Objective

    13. 1.5 User Input

    14. Description
    15. Objective

    16. 1.6 Casting and Ranges of Variables

    17. Description
    18. Objective

    19. 1.7 Primitive Types Quiz

    20. Description
    21. Objective

  2. Using Objects

    1. 2.1 Objects: Instances of Classes

    2. Description
    3. Objective

    4. 2.2 Creating and Storing Objects (Instantiation)

    5. Description
    6. Objective

    7. 2.3 Overloading

    8. Description
    9. Objective

    10. 2.4 Calling a Void Method

    11. Description
    12. Objective

    13. 2.5 Calling a Void Method with Parameters

    14. Description
    15. Objective

    16. 2.6 Calling a Non-void Method

    17. Description
    18. Objective

    19. 2.7 String Objects

    20. Description
    21. Objective

    22. 2.8 String Methods

    23. Description
    24. Objective

    25. 2.9 Wrapper Classes: Integers and Doubles

    26. Description
    27. Objective

    28. 2.10 Using the Math Class

    29. Description
    30. Objective

    31. 2.11 Using Objects Quiz

    32. Description
    33. Objective

  3. Boolean Expressions and if Statements

    1. 3.1 Boolean Expressions and if Statements

    2. Description
    3. Objective

    4. 3.2 if Statements and Control Flow

    5. Description
    6. Objective

    7. 3.3 if-else Statements

    8. Description
    9. Objective

    10. 3.4 else if Statements

    11. Description
    12. Objective

    13. 3.5 Compound Boolean Expressions

    14. Description
    15. Objective

    16. 3.6 Equivalent Boolean Expressions

    17. Description
    18. Objective

    19. 3.7 Comparing Objects

    20. Description
    21. Objective

    22. 3.8 Boolean Expressions and if Statements Quiz

    23. Description
    24. Objective

  4. Iteration

    1. 4.1 Iteration

    2. Description
    3. Objective

    4. 4.2 For Loops

    5. Description
    6. Objective

    7. 4.3 Developing Algorithms Using Strings

    8. Description
    9. Objective

    10. 4.4 Nested Iteration

    11. Description
    12. Objective

    13. 4.5 Informal Code Analysis

    14. Description
    15. Objective

    16. 4.6 Iteration Quiz

    17. Description
    18. Objective

  5. Writing Classes

    1. 5.1 Writing Classes

    2. Description
    3. Objective

    4. 5.2 Constructors

    5. Description
    6. Objective

    7. 5.3 Documentation with Comments

    8. Description
    9. Objective

    10. 5.4 Accessor Methods

    11. Description
    12. Objective

    13. 5.5 Mutator Methods

    14. Description
    15. Objective

    16. 5.6 Writing Methods

    17. Description
    18. Objective

    19. 5.7 Static Variables and Methods

    20. Description
    21. Objective

    22. 5.8 Scope and Access

    23. Description
    24. Objective

    25. 5.9 this Keyword

    26. Description
    27. Objective

    28. 5.10 Ethical and Social Implications of Computing

    29. Description
    30. Objective

    31. 5.11 Writing Classes Quiz

    32. Description
    33. Objective

  6. Array

    1. 6.1 Array

    2. Description
    3. Objective

    4. 6.2 Traversing Arrays

    5. Description
    6. Objective

    7. 6.3 Enhanced for Loop for Arrays

    8. Description
    9. Objective

    10. 6.4 Developing Algorithms Using Arrays

    11. Description
    12. Objective

    13. 6.5 Array Quiz

    14. Description
    15. Objective

  7. ArrayList

    1. 7.1 ArrayList

    2. Description
    3. Objective

    4. 7.2 ArrayList Methods

    5. Description
    6. Objective

    7. 7.3 Traversing ArrayLists

    8. Description
    9. Objective

    10. 7.4 Developing Algorithms using ArrayLists

    11. Description
    12. Objective

    13. 7.5 Searching

    14. Description
    15. Objective

    16. 7.6 Sorting

    17. Description
    18. Objective

    19. 7.7 Ethical Issues Around Data Collection

    20. Description
    21. Objective

    22. 7.8 ArrayList Quiz

    23. Description
    24. Objective

  8. 2D Array

    1. 8.1 2D Arrays

    2. Description
    3. Objective

    4. 8.2 Traversing 2D Arrays

    5. Description
    6. Objective

    7. 8.3 2D Array Quiz

    8. Description
    9. Objective

  9. Inheritance

    1. 9.1 Inheritance

    2. Description
    3. Objective

    4. 9.2 Writing Constructors for Subclasses

    5. Description
    6. Objective

    7. 9.3 Overriding Methods

    8. Description
    9. Objective

    10. 9.4 super Keyword

    11. Description
    12. Objective

    13. 9.5 Creating References Using Inheritance

    14. Description
    15. Objective

    16. 9.6 Polymorphism

    17. Description
    18. Objective

    19. 9.7 Object Superclass

    20. Description
    21. Objective

    22. 9.8 Inheritance Quiz

    23. Description
    24. Objective

  10. Recursion

    1. 10.1 Recursion

    2. Description
    3. Objective

    4. 10.2 Recursive Searching

    5. Description
    6. Objective

    7. 10.3 Recursive Sorting

    8. Description
    9. Objective

    10. 10.4 Recursion Quiz

    11. Description
    12. Objective

  11. Introduction to Programming in Java with Karel the Dog

    1. 11.1 Introduction to Programming With Karel

    2. Description
    3. Objective

    4. 11.2 More Basic Karel

    5. Description
    6. Objective

    7. 11.3 Java Programs and the Run Method

    8. Description
    9. Objective

    10. 11.4 Karel Can't Turn Right

    11. Description
    12. Objective

    13. 11.5 Methods in Karel

    14. Description
    15. Objective

    16. 11.6 Top Down Design and Decomposition in Karel

    17. Description
    18. Objective

    19. 11.7 Commenting Your Code

    20. Description
    21. Objective

    22. 11.8 Super Karel

    23. Description
    24. Objective

    25. 11.9 For Loops

    26. Description
    27. Objective

    28. 11.10 While Loops in Karel

    29. Description
    30. Objective

    31. 11.11 If Statements

    32. Description
    33. Objective

    34. 11.12 If/Else Statements

    35. Description
    36. Objective

    37. 11.13 Control Structures Example

    38. Description
    39. Objective

    40. 11.14 More Karel Examples and Testing

    41. Description
    42. Objective

    43. 11.15 How to Indent Your Code

    44. Description
    45. Objective

    46. 11.16 Karel Challenges

    47. Description
    48. Objective

    49. 11.17 Karel Quiz

    50. Description
    51. Objective

  12. AP Test Practice

    1. 12.1 AP Practice Test 1

    2. Description
    3. Objective

  13. Java Pretest

    1. 13.1 Java Pretest

    2. Description
    3. Objective

  14. Java Posttest

    1. 14.1 Java Posttest

    2. Description
    3. Objective

  15. Teacher Feedback

    1. 15.1 Teacher Feedback

    2. Description
    3. Objective

  16. Additional Exercises

    1. 16.1 Unit 3

    2. Description
    3. Objective

    4. 16.2 Unit 4

    5. Description
    6. Objective

    7. 16.3 Unit 5

    8. Description
    9. Objective

    10. 16.4 Unit 7

    11. Description
    12. Objective

  17. Elevens

    1. 17.1 Elevens

    2. Description
    3. Objective

  18. Magpie

    1. 18.1 Magpie Lab

    2. Description
    3. Objective

  19. Picture Lab

    1. 19.1 Picture Lab

    2. Description
    3. Objective

  20. Consumer Review Lab

    1. 20.1 Introduction

    2. Description
    3. Objective

    4. 20.2 Sentiment Value and Star Ratings

    5. Description
    6. Objective

    7. 20.3 Autogenerated Review

    8. Description
    9. Objective

    10. 20.4 Create a Negative or Positive Review

    11. Description
    12. Objective

    13. 20.5 Open Ended Activity!

    14. Description
    15. Objective

  21. Celebrity Lab

    1. 21.1 Activity 1: Introduction to Celebrity

    2. Description
    3. Objective

    4. 21.2 Activity 2: The Celebrity Class: A Simple Version

    5. Description
    6. Objective

    7. 21.3 Activity 3: Putting it All Together

    8. Description
    9. Objective

    10. 21.4 Activity 4: Extending the Celebrity Class

    11. Description
    12. Objective

    13. 21.5 Activity 5: Open Ended Activity

    14. Description
    15. Objective

  22. Steganography Lab

    1. 22.1 Activity 1: Exploring Color

    2. Description
    3. Objective

    4. 22.2 Activity 2: Hiding and Revealing a Picture

    5. Description
    6. Objective

    7. 22.3 Activity 3: Identifying a Hidden Picture

    8. Description
    9. Objective

    10. 22.4 Activity 4: Hiding and Revealing a Text Message

    11. Description
    12. Objective

    13. 22.5 Activity 5: Open Ended Project

    14. Description
    15. Objective

  23. Java Level 1 Certification Practice

    1. 23.1 Practice #1: Java Fundamentals

    2. Description
    3. Objective

    4. 23.2 Practice #2: Data Types and Lists

    5. Description
    6. Objective

    7. 23.3 Practice #3: Implementing Flow Control

    8. Description
    9. Objective

    10. 23.4 Practice #4: OOP and Other Advanced Topics

    11. Description
    12. Objective

  24. Deprecated Activities 08/25/21

    1. 24.1 Deprecated Activities 08/25/21

    2. Description
    3. Objective