In this exercise, you modify the ZIP code program from the chapter. If necessary, create...

In this exercise, you modify the ZIP code program from the chapter. If necessary, create a new project named ModifyThis20 Project and save it in the Cpp7\Chap13 folder. Enter the C++ instructions from Figure 13-19 into a new source file named ModifyThis20.cpp. Change the filename in the first comment. Save and then run the program. Test the program using the data shown in Figure 13-20 in the chapter. Now, modify the program so that it also passes to the verifyNumeric function the number of characters contained in the zipCode variable. Save and then run the program. Test the program appropriately.

REFERENCE : Figure 13-19

Figure 13-20