DevShed is moving right along with their series concerning Command objects with this new article showing even more examples of how they're used.
Turning special attention to this second article of the series, I'll develop a few more hands-on examples concerning the pattern in question, thus you can reaffirm the concepts learned in the preceding installment.
They start off by building an array command class to act as a base for the rest of the tutorial. They make two more command classes to point to the commands to be issued (lowercase or reverse a string). Next up is the commanded class to handle the actions themselves. Finally, they plug it all together and show a complete example, including usage.