C++ Primer Plus, Fourth Edition

Programming Exercises

1:	Write a program that reads keyboard input to the @ symbol and that echoes the input except for digits, converting each uppercase character to lowercase, and vice versa. (Don't forget the cctype family.)
2:	Write a program that reads up to ten donation values into an array of double. The program should terminate input on non-numeric input. It should report the average of the numbers and also report how many numbers in the array are larger than the average.
3:	Write a precursor to a menu-driven program. The program should display a menu offering four choices, each labeled with a letter. If the user responds with a letter other than one of the four valid choices, the program should prompt the user to enter a valid response until ...