Question 2

Use a

switch statement

to write the following program: Using C++

The program prompts the user for a letter grade (of type char). The list of valid letter grades

is:

A

B

C

D

E

F

The program should consider both lower and upper case

The program will then display the following messages:

For grade A: display Excellent

For grade B: display Good

For Grade C: display Average

For grade D or E: display Below Average

For Grade F: display Fail

For any other letter grade entered by users: display Invalid Grade

Your test plan should include tests for each possible output, invalid input, and lowercase

letters.

Provide a total of 4 test cases:

-

You can choose a mix of test cases with uppercase inputs A, B, C, D, E, F or

lowercase inputs a, b, c, d, e, f.

-

1 invalid test case (provide a letter that is not within [A,F] or [a,f])

Test #	Valid / Invalid Data	Description of test	Input Value	Actual Output	Test Pass / Fail
1	Valid				Pass
2	Valid				Pass
3	Valid				Pass
4	Invalid				Pass