Difference between revisions of "AP Computer Science"

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== Thursday (1/31/19) ==
+
== Monday (3/25/19) ==
 
'''Agenda:'''
 
'''Agenda:'''
* Demo Item Collection Game
+
* FRQ #4 HQ check
* Arrays of Objects
+
* Questions about your self-grading FRQ #3?
** String arrays (review)
+
* [https://www.processing.org/tutorials/pixels/ Processing: Images & Pixels Tutorial]
** Ball class and Ball array
+
* Processing Image Two-Dimensional Array practice
* Item Collection Game w/ Object Arrays (assignment)
+
*# Convert to black and white
*# Copy your Item Collection Game to a new Processing sketch
+
*# Flip vertical
*# Convert your item Sprites collected into an array
+
*# Flip horizontal
*# Convert your robot Sprites into an array
+
*# Rotate image 90 degrees of a square image
*# Demo your converted game on '''Monday (2/4/19)'''
+
*# Rotate 90 degrees clockwise of a non-square image (no animation needed)
 +
*# Mosaic (no animation needed)
 +
*## Take an image, sample every (10th row, 10th col) pixel's color
 +
*## Draw a 10x10 square using the sampled pixel's color at ever 10th (x,y)
 +
*## You should display both the original image and its mosaic
 +
*# Pointilism Animation
 +
*## This will be an animation
 +
*## Within setup(), load an image, load its pixels, and turn off line strokes
 +
*## Within draw(), generate a random index number from 0 to image's pixel length (use [https://processing.org/reference/random_.html random()])
 +
*##* int rand = (int) random(0, img.pixels.length);
 +
*## Sample the color of the pixel from the random index and fill with the color
 +
*## Calculate the appropriate (x,y) from the random index (Hint: use modulus (%) for x and division (/) for y)
 +
*## Draw the circle at its appropriate (x,y) using a random diameter from (5, 15)
  
== Tuesday (1/29/19) ==
+
'''Homework:'''
'''Agenda:'''
+
* Complete [https://apcentral.collegeboard.org/pdf/ap-computer-science-a-frq-2017.pdf 2017 APCS FRQ] by Friday (3/29/19)
* Item Collection Game - '''due Thursday (1/31/19)'''
+
** Do not spend more than 1 hr 30 minutes (avg 22.5 mins per question)
*# We will design a simple top-down item collection game using a new Sprite class (specified below)
 
*# Find and download Sprite images of your choosing
 
*# You can move the player sprite with the keyboard (wrap the player to the other side of the screen if you go off screen)
 
*# The player sprite will be able to collect item sprites
 
*# Robot sprites will follow the player around
 
*# You win when you collect all the items
 
*# You lose if a robot collides with your sprite
 
* Sprite class (has similarities to the previous Sprite class)
 
** Attributes:
 
*** double x, y (to be used for position)
 
*** double dx, dy (to be used for step size when moving -- always positive)
 
*** PImage img (stores the image)
 
*** boolean visible (default setting is true -- we will use this variable to track the Sprite's visibility state)
 
** Constructors:
 
*** Sprite()
 
*** Sprite(String imgfile, double x, double y, double dx, double dy)
 
** Methods:
 
*** void display() - if visible is true, then display the image
 
*** void moveLeft() - move x-coordinate to the left by dx amount
 
*** void moveRight() - move x-coordinate to the right by dx amount
 
*** void moveUp() - move y-coodrinate upwards by dy amount
 
*** void moveDown() - move y-coodrinate downwards by dy amount
 
*** boolean checkCollision(Sprite other) - returns true if this Sprite is colliding with the other Sprite (use previous Sprite class to help with this method)
 
*** void follow(Sprite other) - compare x and y coordinates of this Sprite with the other Sprite -- move this Sprite towards other Sprite by using the move____() methods
 
  
== Tuesday - Thursday (1/22/19 - 1/24/19) ==
+
== Thursday (3/21/19) ==
 
'''Agenda:'''
 
'''Agenda:'''
* [https://drive.google.com/file/d/1tQc3yOyfjy7xN6oz0glIeFHqJgORmuAd/view?usp=sharing Dino Game example]
+
* FRQ #3 HW check
** We will convert the non-OOP version into an [https://drive.google.com/file/d/1FAO7kdtVrYrrO4jgcRMap3S3UtDqFe_W/view?usp=sharing OOP version]
+
* Grade FRQ #3
** Add another cactus to the dino game
+
* Discussion: How do you study for a comprehensive exam?
* Flappy Bird OOP
+
* Two-Dimensional Arrays review
** What modifications to our Sprite class do we need to make?
+
** array[ROW][COL]
** Here are some Flappy Bird sprite images [https://drive.google.com/file/d/1UugFrLPjeA8YPXOlmOxjIvzd6HdvpupA/view?usp=sharing here]
+
** instantiation & creation
** Implement the OOP version of Flappy Bird in Processing
+
** row and col bounds
** Bird will need to flap when a key is pressed
+
** traversal / iteration through
** Pipes will need to move and wrap around the screen
+
** Tic-Tac-Toe example
** Score increases when a pipe is passed (this will require something to be added to the Sprite class)
+
** Image processing example(s)
** Lose when bird collides with a pipe or when the Bird goes too far below the screen
 
** Due '''Thursday (1/24/19)''' -- last assignment of 2nd Quarter
 
  
== Thursday (1/17/19) ==
+
'''Homework:'''
'''Warmup:'''
+
* Complete 2018 FRQ #4 '''and''' self-score using the scoring guidelines
* Submit your Circle class to repl.it
+
** [https://apcentral.collegeboard.org/pdf/ap18-frq-computer-science-a.pdf 2018 APCS FRQs]
 +
** [https://secure-media.collegeboard.org/ap/pdf/ap18-sg-comp-sci-a.pdf 2018 APCS FRQ Scoring Guidelines]
  
 +
== Tuesday (3/19/20) ==
 
'''Agenda:'''
 
'''Agenda:'''
* Object-Oriented Programming cont'd
+
* Grade 2018 FRQ #2
** OOP Review - attributes, constructors, setters, getters, public vs. private, this
+
* [https://docs.oracle.com/javase/tutorial/java/concepts/interface.html Interfaces]
** toString() method (using the Point class)
+
** Real-world interface examples (mouse, keyboard, num pad, calculator, head phones, etc)
** Submit Point class to repl.it
+
** '''interface''' and '''implements''' keywordS
** [https://docs.google.com/presentation/d/1hb_8wMUlQQl7W-JF2f3gax021yDHLkLENJYy0fUMGy8/edit?usp=sharing Classes (Java) slides]
+
*# Interfaces do not have instance variables (you can have static final variables)
* Complete the Car class assignments in repl.it
+
*# Interfaces only contain method signatures (no method bodies or implementations)
* [https://drive.google.com/file/d/1tQc3yOyfjy7xN6oz0glIeFHqJgORmuAd/view?usp=sharing Dino Game example]
+
*# Classes can '''implement''' multiple interfaces
** Add another cactus to the dino game
+
*# Implementing an interface requires "implementing" the methods of the interface
 +
* Interface example walk-through
  
 
'''Homework:'''
 
'''Homework:'''
* Complete eIMACS: Activity 14: Address Objects
+
* Complete 2018 FRQ #3 within 22.5 minutes
 
+
** [https://apcentral.collegeboard.org/pdf/ap18-frq-computer-science-a.pdf 2018 APCS FRQs]
== Tuesday (1/15/19) ==
 
* Snow Day
 
  
== Friday (1/11/19) ==
+
== Friday (3/15/19) ==
 
'''Agenda:'''
 
'''Agenda:'''
* Object-Oriented Programming cont'd
+
* Free-response question rubric & grading
** Person class review
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* Abstract classes review
** Vocab:
+
* Complete Activity 24: Transactions
*** class vs object
 
*** declaration vs instantiation
 
** Point class example
 
** Point object instantiation
 
** Point object usage
 
** [https://docs.google.com/presentation/d/1hb_8wMUlQQl7W-JF2f3gax021yDHLkLENJYy0fUMGy8/edit?usp=sharing Classes (Java) slides]
 
** Circle class example
 
** [https://drive.google.com/file/d/1tQc3yOyfjy7xN6oz0glIeFHqJgORmuAd/view?usp=sharing Dino Game example]
 
  
 
'''Homework:'''
 
'''Homework:'''
* Create a Circle class and test it out
+
* Complete FRQ #2 within 22.5 minutes
* Follow the [https://docs.google.com/presentation/d/1hb_8wMUlQQl7W-JF2f3gax021yDHLkLENJYy0fUMGy8/edit?usp=sharing Classes (Java) slides]
+
** [https://apcentral.collegeboard.org/pdf/ap18-frq-computer-science-a.pdf 2018 APCS FRQs]
 +
 
 +
== Wednesday (3/13/19) ==
 +
'''Warmup:'''
 +
* Hand-written free-response question (22 minutes)
 +
*# Read through all their given code and summary
 +
*# Every variable and method...
 +
*## What is the purpose of that variable or method?
 +
*## What are the input parameters of the method?
 +
*## What is returned by the method?
 +
*# WHEN READING...DO NOT FIXATE ON WRITING CODE
  
== Wednesday (1/9/19) ==
 
 
'''Agenda:'''
 
'''Agenda:'''
* Cornell Engineering Diversity Programs - one-week residential programs:
+
* Free-response question rubric & grading
** [https://sites.coecis.cornell.edu/catalystacademy/ Catalyst Academy] - juniors and seniors from underrepresented backgrounds
 
** [https://sites.coecis.cornell.edu/curieacademy/ Curie Academy] - high school girls who excel in math and science
 
* Recursion quiz
 
* Submit Recursion Problems to repl.it
 
** public static int count(String s, String ch) - returns the number of occurrences of ch (single character string) within s
 
** public static String reverse(String s) - returns the reversed String s
 
** public static int reverse(int i) - returns an int that is the full digit reversal of i (e.g. 1234 -> 4321)
 
* Introduction to Object-Oriented Programming
 
** [https://repl.it/@paulbui/SimpleProgramWithoutOOP Simple program without OOP example]
 
** Simple program with OOP example
 
** Point class example
 
** Point object instantiation
 
** Point object usage
 
** [https://docs.google.com/presentation/d/1hb_8wMUlQQl7W-JF2f3gax021yDHLkLENJYy0fUMGy8/edit?usp=sharing Classes (Java) slides]
 
** Circle class example
 
  
'''Homework:'''
+
== Monday (3/11/19) ==
* Complete and submit recursion problems to repl.it
+
* English 11 Writing SOL - no class
* Review SimpleProgramWithOOP notes that we did in class
 
  
== Monday (1/7/19) ==
+
== Thursday (3/7/19) ==
* Don't forget to complete Activity 13 (due tonight)
+
'''Agenda:'''
* Recursion Quiz Wednesday (1/9/19)
+
* Confirm that you have completed the [https://www.albert.io/assignment/d8da5c33-2eaf-4edf-b1ee-28410d733889 Albert.io Inheritance & Polymorphism assignment]
** Multiple choice questions
+
** Questions?
** Free-response question(s)
+
* Method overriding review & example
* Recursion Review & Practice
+
* Complete eIMACS: Lab 4: Inventory Tracking
* Recursion Problems (prepare to submit to repl.it)
+
* static keyword (for methods or for variables)
** public static int count(String s, String ch) - returns the number of occurrences of ch (single character string) within s
+
** binds the method or variable to the class NAME as opposed to the object instance
** public static String reverse(String s) - returns the reversed String s
+
** static method example
** public static int reverse(int i) - returns an int that is the full digit reversal of i (e.g. 1234 -> 4321)
+
** static variable example
 +
* final keyword
 +
** makes the variable unchangeable
 +
** final variable example
 +
* abstract keyword
 +
** Abstract classes walk-through (Animal->Mammal, Fish, Bird)
 +
** Object instances of abstract classes are *not* allowed
 +
** Derived sub-classes of abstract classes must implement abstract methods (unless the sub-class is also abstract)
  
== Monday - Friday (12/31/18 - 1/4/19) ==
+
== Tuesday (3/5/19) ==
* Winter Break
+
'''Agenda:'''
 +
* Confirm that you have completed Activity 19
 +
* Complete the [https://www.albert.io/assignment/d8da5c33-2eaf-4edf-b1ee-28410d733889 Albert.io Inheritance & Polymorphism assignment]
 +
* Complete eIMACS: Lab 4: Inventory Tracking
  
 
== Archives ==
 
== Archives ==
 +
* [[APCS - 1819 - February]]
 +
* [[APCS - 1819 - January]]
 
* [[APCS - 1819 - December]]
 
* [[APCS - 1819 - December]]
 
* [[APCS - 1819 - November]]
 
* [[APCS - 1819 - November]]

Revision as of 18:43, 24 March 2019

Monday (3/25/19)

Agenda:

  • FRQ #4 HQ check
  • Questions about your self-grading FRQ #3?
  • Processing: Images & Pixels Tutorial
  • Processing Image Two-Dimensional Array practice
    1. Convert to black and white
    2. Flip vertical
    3. Flip horizontal
    4. Rotate image 90 degrees of a square image
    5. Rotate 90 degrees clockwise of a non-square image (no animation needed)
    6. Mosaic (no animation needed)
      1. Take an image, sample every (10th row, 10th col) pixel's color
      2. Draw a 10x10 square using the sampled pixel's color at ever 10th (x,y)
      3. You should display both the original image and its mosaic
    7. Pointilism Animation
      1. This will be an animation
      2. Within setup(), load an image, load its pixels, and turn off line strokes
      3. Within draw(), generate a random index number from 0 to image's pixel length (use random())
        • int rand = (int) random(0, img.pixels.length);
      4. Sample the color of the pixel from the random index and fill with the color
      5. Calculate the appropriate (x,y) from the random index (Hint: use modulus (%) for x and division (/) for y)
      6. Draw the circle at its appropriate (x,y) using a random diameter from (5, 15)

Homework:

  • Complete 2017 APCS FRQ by Friday (3/29/19)
    • Do not spend more than 1 hr 30 minutes (avg 22.5 mins per question)

Thursday (3/21/19)

Agenda:

  • FRQ #3 HW check
  • Grade FRQ #3
  • Discussion: How do you study for a comprehensive exam?
  • Two-Dimensional Arrays review
    • array[ROW][COL]
    • instantiation & creation
    • row and col bounds
    • traversal / iteration through
    • Tic-Tac-Toe example
    • Image processing example(s)

Homework:

Tuesday (3/19/20)

Agenda:

  • Grade 2018 FRQ #2
  • Interfaces
    • Real-world interface examples (mouse, keyboard, num pad, calculator, head phones, etc)
    • interface and implements keywordS
    1. Interfaces do not have instance variables (you can have static final variables)
    2. Interfaces only contain method signatures (no method bodies or implementations)
    3. Classes can implement multiple interfaces
    4. Implementing an interface requires "implementing" the methods of the interface
  • Interface example walk-through

Homework:

Friday (3/15/19)

Agenda:

  • Free-response question rubric & grading
  • Abstract classes review
  • Complete Activity 24: Transactions

Homework:

Wednesday (3/13/19)

Warmup:

  • Hand-written free-response question (22 minutes)
    1. Read through all their given code and summary
    2. Every variable and method...
      1. What is the purpose of that variable or method?
      2. What are the input parameters of the method?
      3. What is returned by the method?
    3. WHEN READING...DO NOT FIXATE ON WRITING CODE

Agenda:

  • Free-response question rubric & grading

Monday (3/11/19)

  • English 11 Writing SOL - no class

Thursday (3/7/19)

Agenda:

  • Confirm that you have completed the Albert.io Inheritance & Polymorphism assignment
    • Questions?
  • Method overriding review & example
  • Complete eIMACS: Lab 4: Inventory Tracking
  • static keyword (for methods or for variables)
    • binds the method or variable to the class NAME as opposed to the object instance
    • static method example
    • static variable example
  • final keyword
    • makes the variable unchangeable
    • final variable example
  • abstract keyword
    • Abstract classes walk-through (Animal->Mammal, Fish, Bird)
    • Object instances of abstract classes are *not* allowed
    • Derived sub-classes of abstract classes must implement abstract methods (unless the sub-class is also abstract)

Tuesday (3/5/19)

Agenda:

Archives