Accessing items in a 2D array can sometimes be a pain. I have created an Array2D class that extends Array and eases some of that pain.
Shifting any number x to the left by y bits is the same as multiplying x by 2 to the power of y. What? How? Why?
While you could login to your DigitalOcean servers with a password, it’s usually preferable to set up and use an SSH key pair.