CompSci.rocks - Random thoughts from a computer science classroom
How video games affect your brain
Great TED talk about how playing video games affects your brain. It's probably not what you think.
Rocketbook QR Codes
A few weeks ago I spent some time trying to decode the Rocketbook QR codes. Didn't have much luck, but here's what I've found so far.
Lightboard from the 2019 CompSci AP-A FRQ has you working with a 2d-array.
Delimiters is a problem where you're working with an ArrayList of strings.
2019 AP FRQ Solutions
In 2019 the CompSci AP-A exam had you solve the FRQs APCalendar, Delimiters, Light Board, and Step Tracker.
StepTracker has you implement a full class from scratch
AP Calendar FRQ Solution
AP Calendar has you working with an arbitrary class and dates
Sound FRQ Solution
For the Sound FRQ you're working with a one dimensional array of integers
The Climb FRQ has you working with a ArrayList of objects
Horse Barn Solution
The Horse Barn FRQ has you working with a ArrayList of objects and interfaces
Download Info Solution
Download Info has you implement a solution using an ArrayList of an arbitrary class
We all learned PEMDAS in school, but the order of operations in Java is way more detailed.