My computer science teacher, Dr. Di Wu, requires her students to complete two hardest Java problems for each section on CodingBat. This repo contains the source code of my implementations. Apart from ...

Return true if the given non-negative number is 1 or 2 less than a multiple of 20. So for example 38 and 39 return true, but 40 returns false. See also: Introduction to Mod ...

While the basic course is free and great for getting started, they also have a ‘Pro’ version if you want to dig deeper. It’s a solid choice if you’re totally new to programming and want a smooth, ...