AP Computer Science

General Information:

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• AP CS A Basis Syllabus 2021 - 2022
• Foundation CS A Basis Syllabus 2021 - 2022
• Install Java
  • Or from this website directly:
    • windows-x64, windows-i586
      • Search for "About your PC" - 'System type', to determine if your PC is 64-bit or 86-bit.
    • macosx-x64
    • linux-arm32, linux-arm64, linux-i586.rpm, linux-i586.tar, linux-x64.rpm, linux-x64.tar
    • solaris-sparcv9.tar, solaris-sparcv9.z, solaris-x64.tar, solaris-x64.z
• How to Install JDK
  • Special note for Mac, please either:
    • Use Mac OS X's default text editor 'TextEdit', but open a new file - 'Format' - 'Make Plain Text' before entering any program code.
    • Or install either Sublime Text or Atom.
• Jdoodle
• Error Explanations
• LockDown Browser
• Comments
• AP FRQ Scoring Guidelines
• Submitting Corrected Code
• Coding Lessons Life Cycle
• Submitting Corrected MCQs

1. Introduction to Java

2. How to Compile & Run your First Java Program

• Error Explanations
• College Board Videos:
• 1, 2, 3
• Beginners Book
• Practice-IT (create an account)
  • Self-Check 1.7: outputSyntax
  • Self-Check 1.18: MyProgram-errors
  • Self Check 1.19: SecretMessage-errors
  • Self-Check 1.20: FamousSpeech-errors
• CodeStepByStep
  • console output (HelloWorld)

3. Data Types & Identifiers/Variables in Java

• Includes 'Type Casting' from 1 primitive data type to another.
• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
• 1, 2, 3, 4, 5, 6, 7, 8, 9
• Practice-IT
  • Building Java Programs, 5th edition - BJP4 Chapter 2: Primitive Data
    • Self-Checks 1.6, 2.1 - 2.4, 2.6 - 2.10, 2.12 - 2.20 (note not 2.5 or 2.11)
    • Exercise 2.1: displacement
• CodeStepByStep
  • console output: (Receipt), expressions: (digitExpressions & displacement)
• Data Types & Identifiers Variables Quiz

4. Conversion

• Exploding Dots Video
• Floating Point Video
• Number Conversion
• Conversion Test
• Practice-IT
  • 1.1: binaryNumbers
  • 1.2: binary1
  • 1.3: binary

5. Conditionals & Control Flow:

(a) if, if/else, if/else if

• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
  • 1, 2, 3, 4, 5, 6, 7, 8

(b) Logical Operators

• Includes 'Short-Circuit Evaluation' , 'De Morgan's Laws' & 'Debugging'.
• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
  • 1, 2, 3, 4, 5


• FRQs:
  • Menu, PH, APLine, Item, TheatreTickets
• Conditionals & Control Flow Quiz
• Practice-IT
  • Self-Check 4.2: logicExpressions1
  • Self-Check 4.3: ifStatementSyntax
  • Self-Check 4.10: javaIsAwesome
  • BJP5 Self-Check 5.14: logicExpressions2
  • BJP5 Self-Check 5.22: deMorgans

6. Loops:

(a) for

• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
• 1, 2, 3, 4
• Practice-IT
  • Self-Checks 2.21 - 2.25, 2.27, 2.28
  • Exercise 2.2

(b) nested for

• includes String Escape Sequences e.g. \", \\, \n, ...
• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
• 1
• Practice-IT
  • Exercise 1.6: Meta
  • Self-Checks 1.8 - 1.17, 2.26, 2.29 - 2.33, 2.36 - 2.38
  • Exercises 1.1 - 1.5 & 1.9, 2.4 - 2.17, 2.19 - 2.23
• CodeStepByStep
  • console output (FearTheTree & PrintProgram), loopMysteryPrint1 -> numberLoops4constant, starsPrint

(c) while

• Includes 'Debugging'.
• Learning Objectives & Essential Knowledge
• Notes
• College Board Videos:
• 1, 2, 3, 4, 5
• Tracing Java Variables
• Practice-IT
  • Self-Checks 5.1, 5.2, 5.13, 5.21
• CodeStepByStep
  • loops (AsciiFigure)


• FRQs:
  • Digits, DigitsSum, DivBySum, LongestStreak, CodeNumber
• Loops Quiz 1
• Loops Quiz 2

7. Strings (classes & objects) , Strings (basic essentials - just methods)

• Integer.MAX_VALUE/MIN_VALUE & Double
• Essential Knowledge & Learning Objectives
• FRQs:
  • Menu, LongestStreak, ScrambledWord, LightSequence
  • StringManip, Checker, CodeWord, HiddenWord, Digits
• Strings Class Quiz
• AP College Board Videos:
  • String Objects - Concatenation, Literals, and More:
  • 1, 2, 3
  • String Methods:
  • 1, 2, 3
  • String Algorithms:
  • 1, 2, 3
  • Wrapper Classes - Integer and Double:
  • 1, 2, 3
  • Math Class:
  • 1, 2, 3
  • String Objects: Concatenation, Literals, and More
  • String Methods [Part 1]
  • String Methods [Part 2]
  • String Methods [Part 3] and Algorithms Using Strings
  • String Methods [Part 4] and Comparing Objects
• Practice-IT
  • Self-Checks 4.7 - 4.9, 4.11 - 4.14, 4.17, 5.23 - 5.26
• CodeStepByStep
  • console output (Receipt2 -> CalculateLine)

8. Arrays:

(a) 1D

• includes random(), abs, searching algorithms(sequential & binary), sorting algorithms (selection, insertion & merge)
• Essential Knowledge & Learning Objectives
• Google Sheets Visual Demonstration of traversing through 1D arrays
• Google Sheets Visual Demonstration of Sequential & Binary Searching
• Google Sheets Visual Demonstration of Selection & Bubble Sorting
• FRQs:
• Part FRQs:
• DivBySum, Words, ArraySum, BatteryCharger, Robot, PrintNums
• Full FRQs:
• Scores, Payroll, NumberCube, Sound, TokenPass
• 1D Arrays Quiz 1
• 1D Arrays Quiz 2
• 1D Arrays Quiz 3
• Selection Sort Video
• Insertion Sort Video
• Merge Sort Video
• AP College Board Videos:
• Array Creation and Access:
• 1, 2, 3
• Traversing Arrays:
• 1, 2, 3
• Enhanced for Loop for Arrays:
• 1
• Developing Algorithms Using Arrays:
• 1, 2, 3
• Array Creation/Access and Math Class
• Traversing Arrays
• Enhanced for Loop for Arrays
• Searching [Part 1]
• Sorting [Part 1] (Insertion Sort)
• Sorting [Part 2]
• Practice-IT
• BJP5 Chapter 13: Searching and Sorting

1D Arrays MCQs Test

(b) 2D & final

• Essential Knowledge & Learning Objectives
• Google Sheets Visual Demonstration of traversing 2D arrays
• AP College Board Videos:
• 2D Arrays:
• 1, 2, 3
• Traversing 2D Arrays:
• 1, 2, 3
• FRQs:
• Part FRQs:
• 2d - 1d, RouteCipher, Crossword, Successors
• Full FRQs:
• GrayImage, LightBoard
• 2D Arrays Quiz
• Practice-IT
• BJP5 Chapter 7: Arrays
• Self Checks 7.1 - 7.9, 7.12 - 7.15, 7.18, 7.22 - 7.28, 7.31 - 7.36
• The rest require a good understanding of methods so you may want to come back to them after 9 below (some of the above also require methods but only a basic understanding).

9. Defining your own Static Methods / Methods Simplified

• Includes 'Passing by Value'.
• Essential Knowledge & Learning Objectives
• Notes
• College Board Videos:
• Static Variables and Methods:
• 1, 2
• FRQs:
  • Combinatorics, StringManip, APCalendar, CheckDigit, DiverseArray, LatinSquares
• Methods Quiz 1
• Methods Quiz 2
• Code for the example 'Apartment' program:
  • Apt (uses scanner class for user input)
• Practice-IT
  • All remaining self checks & exercises.
• CodingBat
  • Create an account and enter my email address in "prefs" menu - "Teacher Share" section - "Share To" box and click "Share".
  • All problems except for "Recursion", "Functional" &"Map".
• CodeStepByStep
  • algorithms, arrays, console output (evenSumMax -> stanfordVsCal), expressions (all from expressionsExam1), if else, loops (all that were skipped in section 6), parameters and return, searching, sorting, strings