27. The Payroll Case Study: Implementation


© Jennifer M. Kohnke

It’s long past time we started writing the code that supports and verifies the designs we’ve been spinning. I’ll be creating that code in very small, incremental steps, but I’ll show it to you only at convenient points in the text. Don’t let the fact that you see only fully formed snapshots of code mislead you into thinking that I wrote it in that form. In fact, between each batch of code you see, there will have been dozens of edits, compiles, and test cases, each one making a tiny, evolutionary change in the code.

You’ll also see quite a bit of UML. Think of this UML as a quick ...

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