Best practices, structuring of code, dissecting algorithms and talking about the “Why?”
Historically the question "How do I login to a website from X Language?" gets asked from time to time on Dream.In.Code. The answers to this question has not been the greatest and these questions tend to be largely ignored. I intend to put an end to this for the Java language with a simple example. The answer, while simple, does expect the reader to be at least familiar with how ...
Remember those pesky equations that baffled you in like 1st grade? Addition and subtraction along with their friends multiplication and division. Hey, you wanted to go play kick ball or chase that girl around the playground... not to hook up with her but to put dirt in her hair. Well, you probably learned to write your equations in infix form like 3 + 4 or 2 * 7. This makes ...
Hello readers! It has been awhile since my last post. Lots of things have been going on lately and I have been busy developing some great code for some great people. In this entry I am going to show you a bit of plain text file encryption using the Rijndael Algorithm. This example is a fairly simple one and I hope to explain the basics as I move through an ...
So recently someone asked about listing files from several directories but only to a given depth. They were using a DirectoryInfo object, as they probably should, to get a list of files. There was a problem with this however since the constructor of this object only offers a version where you specify no recursion on the sub directories or full recursion and get all the sub directories. This is an ...
So what is behind the theory of binary gray code? It was named after Frank Gray and is a numerical system where each successive value differs from the one before it by one bit value. It is like counting in binary, but in binary counting a step may require changing two bits. For instance going from 1 (01) to 2 (10) would involve changing the most significant value 1 ...
Yesterday a user came through the Java forum looking for help with finding the intersection of two LinkedList sets. If you were anything like I was in school, you probably had a flash back to math class and the teacher drawing Venn Diagrams up on the white board. Two circles, usually representing two sets of elements, and where they overlapped was elements shared between the sets. Maybe they even drew ...