The Cpp8\Chap04 folder contains several files named Ch04-Lab4-2 developmentTool.pdf. Each file corresponds to a specific C++ development tool and provides step-by-step directions for creating, entering, saving, and running the program shown in Figure 4-27. If the Cpp8\Chap04 folder contains a PDF file for your C++ development tool, open the PDF file and then follow the directions listed in the file. (You can use Adobe Reader to open a PDF file. If you don't have Adobe Reader on your computer system, you can download it for free at www.adobe.com.)