Reference variables as parameters allow you to return more than one value from a method.

Rewrite looper from the previous step, calling it looper2. Have this version of the program use the for...in control structure (Sobell, page 447) to per- form the same task.

What will be an ideal response?

Why can’t keywords be used as variable names in C++?

A. The compiler doesn’t understand keywords. B. The linker doesn’t understand keywords. C. You can use keywords as variable names. D. Keywords are reserved by the language and have designated purposes.