We’re also going to look at some initial things that help make coding in Python easier. Multi-line lines of code The first issue is what to do if a line of code starts getting really long. In Python, by default, the line of code ends when you move to a new line. However, you can…
Over my 25-30+ years of coding (including hobby stuff as a teenager), I’ve made my fair share of coding mistakes. In fact, everyone who has ever written code before has written lots of errors. That’s why we test so much. Even today, I still make mistakes, many of them the same as you. The difference…
We want to look at performing some simple math in Python. To do so, we’ll first look at our last example from our introduction to Python examples. We took in a number, but in reality, we took in a string that had numbers in it. If we want to treat the value as a number,…
Often when talking to, or about, programming you’ll hear the term Input, Processing, and Output. It’s kind of the big three in programming, and how we often work. We get some input, from a file, a user, etc… then we process that information, or data if you prefer, and then we provide some output either…
Writing a class or two doesn’t seem to create that big of a problem, and for simple projects it’s not. However, this isn’t effective for large projects with dozens, if not hundreds, of Classes. That’s where packages come into play. A Java package is a way to both logically and physically organize your Java code….
We’ve looked at building our Java Class (here and here), but how do we use it? Let’s look into this. Once our class is complete, or complete enough – we can always go in and modify it further based upon new functionality needed, fixes to bugs, etc, we can instantiate it. That is, we can…
In our previous example, we had a class with a default constructor where we passed no arguments into the class. That is great, unless you want to set one or more class variables with data at run time. So lets look at overloading the class constructor. In this example, we keep our default constructor, but…
This introduction/refresher to Java Classes is assuming that you’ve worked with some Object Oriented language before, like C++, or maybe even Java and you just need a quick refresher. In Java, everything you build will be a class, with very few exceptions. to define a class, you will need a file name, with the same…
