Welcome to AP Computer Science A. If you are a student in the class, the first thing you need to do (and which we should have done in class) is set up your GitHub account.
Once you have a GitHub account, click “Log in to GitHub” below to proceed.
If you don’t have a GitHub account yet, please create one and then log in here for further instructions.
Congratulations! You have successfully connected this app to GitHub. However you are not yet a member of the GitHub organization for this class, something Mr. Seibel needs to set up for you.
This is your GitHub profile URL:
Click the clipboard icon to copy it and then submit it at this form so he can add you.
Congratulations! You have successfully connected this app to GitHub. And it looks like you have an invitation to join the GitHub organization for this class. You need to accept that invitation before you can proceed. The invite should be sent to whatever email you used when you created your GitHub account.
I see you are logged into GitHub and a member of the berkeley-high-cs GitHub organization. However there seems to have been some problem finishing the setup for your account. Please let Mr. Seibel know.
This is a tool for the AP Computer Science A class at Berkeley High School. It is intended to provide a simple environment for experimenting with Javascript without all the complexities of a full development environment such as ReplIt or Glitch which we may use later in the year.
It is also designed to take advantage of the browser’s ability to run Javascript natively. It does not need access to a server to run code making in extremely responsive even if the Wifi is flaking out.
Finally, under the covers it is saving work to a GitHub repository in a very simplified workflow that does not depend on immediately learning any git commands. Code written in this environment for each assignment is saved to a directory and branch specific to that assignment each time it is saved. Thus when the assignment is done, it is easy to go to GitHub and create a PR containing just the work on that assignment which can then be commented on and worked on further before it is turned in and merged to main.
You're all set! You don't need to worry about this yet but we have successfully created a GitHub repository for your work:
You can get to it any time by clicking on your GitHub username at the top-right of the screen.
Write a method that takes a single int argument and
returns true if the number is prime and false if it is not. A number
is prime if it is not divisible by any number other than 1 and
itself. 1 is not prime. Thus you can test whether a number greater
than 1 is prime by checking whether it is divisible by any smaller
number greater than one.
Write a method that takes a single int argument and
returns the number of primes less than that number.
Twin primes are pairs of primes that have only one number between
them. For instance 3 and 5 are twins. Write a method that takes a
single int argument and returns the number of twin
prime pairs with the first twin less than that number.
Super primes are prime numbers whose position in the list of all primes is also a prime number. For instance 3 is a super prime because it is the second prime number, i.e. it’s at position 2, and 2 is a prime number. Likewise, 5 is because it’s the third prime number. But 7 is not because it’s the fourth prime and 4 is not prime. (Note that the “positions” in the list of primes are normal human numbers that start at 1, not programmer numbers that start at 0, so 2 is at position 1, 3 is at position 2, and so on.
Write a method that takes a single int argument and
returns a boolean indicating whether the number is a super prime.
You only need to write two methods.