Calling a method

In the earlier screenshot, look at lines 12 and 22. Do you notice anything different? They sure don't look the same, do they? The variable names, which the blue arrows point to, are different.

If you are looking at that code and saying "What the heck?" then don't feel bad. When I was first learning the concept of calling methods, I had one heck of time understanding how the code worked. It is, in fact, very simple, but I fought with this for days before the lights came on. I consulted all the programming books I had, written by all the experts, and not a single one had the decency to explain how the code worked. All those book authors just assumed I'd "get it" because after all, they were experts.

I had to figure it out myself with trial and error testing. After many days, I finally had my "Ah-Ha" moment.

Using arguments in the parentheses of a method

Arguments?? Who dreams up these words? We all know what an argument is. Every one of us has been involved in an argument at some...