Chapter $3$

Write a program that will allow the user to run two different apps. You will display a menu list of the two apps. The user can type $c$ or $C$ to run the calculator app or the user can type $g$ or $G$ for the grade book app.

If the user selects $\frac{c}{C}$ for the calculator app, the app will have two options. If the user types the number $1,$ the program will ask for two numbers and add them. If the user types the number $2,$ the program will ask for two numbers then multiply them.

If the user selects $\frac{g}{G}$ for the grade book app, the app will ask for a letter grade and display a message based on that letter grade $($use sample $3-06$ posted in Blackboard$).$ The program should have an option to restart if the user types in r$/$R$.$ Use if$-$else$-$if$,$ switch case to complete this and add comments.

This program has two built in apps

Type $C$ or $c$ to run the calculator app

Type $G$ or $g$ for the grade book app

$g$

Enter your midterm letter grade

a

Excellent. You need not take the final.

Do you want to run this program again?

Enter r$/$R to restart

r

This program has two built in apps

Type $C$ or $c$ to run the calculator app

Type G or $g$ for the grade book app

c

Welcome to the calculator app

Make a selection from the following

Choose $1$ to add two numbers

Choose $2$ to multiply two numbers

$2$

Enter two numbers to multiply

Enter the first number

$5$

Enter the second number

$6$

The multiplication of the two numbers is $30$

Do you want to run this program again?

Enter $\frac{r}{R}$ to restart

In C$++$