In C++ there are two ways to process strings. C-Strings which are an array of characters terminated by a null character, or the C++ style string object. The string class hides the details of how the string is stored from the user – remember one of the tasks of a class is to abstract the…
Adding an image is simultaneously easy, and difficult to do. You might think, how can something be both easy, and difficult – well, it is easy to add the image itself, but it can be a challenge to master the process. <img> Tag Let’s start with the easy – the img tag. The image tag…
The description list is slightly “new” to HTML 5. I say new, in that previous to HTML 5, it was called a “definition list” and now it is a description list. The same tags are used, just the name changed. The description list is the least used of the list containers for two reasons. First,…
While it is not encountered all the time, any web developer who has worked very long will encounter a need for nested lists – that is a list within a list, or what is sometimes called a sub-list. Nested lists allow for you to better organize groups of related items. Consider a packing list for…
An ordered list provides a list of items that should be viewed and/or performed in a certain order. In a college or university setting, you might be given a series of classes that are recommended to take in a given order due to prerequisites. Or you might have a list of steps needed to perform…
The unordered list is probably the most frequently used list, and it is sometimes (inaccurately) called a bulleted list because each item is preceded with a bullet point. In reality, an unordered list is a list of items, which the order of the items found doesn’t change their meaning. For example, I could have a…
We’ve talked about abstraction before when working with functions. The idea being using a simple to remember name, to hide a (potentially) complex process involving lots of steps. Classes are often used in the same way. They should be thought of as a “black box” which the programmer doesn’t need to worry about how the…
Previously we looked at a class Circle, which had a property radius that was publicly available. That means that any other class, or your main program could change that value. This is a problem for two reasons: First, that data could be tampered with. Another function, class, etc could directly access the variable and change…
