Welcome to CompSci.rocks

CompSci.rocks - Random thoughts from a computer science classroom

Delimiters Solution

Delimiters is a problem where you're working with an ArrayList of strings.

Read more...

2019 AP FRQ Solutions

In 2019 the CompSci AP-A exam had you solve the FRQs APCalendar, Delimiters, Light Board, and Step Tracker.

Read more...

StepTracker Solution

StepTracker has you implement a full class from scratch

Read more...

AP Calendar FRQ Solution

AP Calendar has you working with an arbitrary class and dates

Read more...

Sound FRQ Solution

For the Sound FRQ you're working with a one dimensional array of integers

Read more...

Climb Solution

The Climb FRQ has you working with a ArrayList of objects

Read more...

Horse Barn Solution

The Horse Barn FRQ has you working with a ArrayList of objects and interfaces

Read more...

Download Info Solution

Download Info has you implement a solution using an ArrayList of an arbitrary class

Read more...

Operator Precedence

We all learned PEMDAS in school, but the order of operations in Java is way more detailed.

Read more...

ASCII Table

Looking for a quick ASCII table to look up a character code? We've got you covered with the first 127 ASCII values in decimal, hex, binary, and octal.

Read more...

How to create a timeline in Canvas

How do I create a timeline in Canvas? Watch this quick 4 minute video.

Read more...

Test Corrections Calculator

Do you allow your students to do test corrections for partial credit? Here is an online calculator to make it easier.

Read more...