Lab 13

Vowel Program

CSCI 111 Programming and Algorithms I

Due Tuesday February 23, 11:59pm on turnin

10 Points

NEW CONCEPTS: Successful completion of this lab incorporates the following new concepts.

switch statement

switch ( )

{

case 'x':

statement;

break;

case 'y':

statement;

break;

BLAH

default:

statement;

}

tolower function tolower( )

Task list:

1. Create a source code file named lab13.cpp.

2. Start by prompting the user for a sentence and saving it into a variable of type string.

3. Determine the frequency of each of the 5 vowels (i.e. a, e, i, o, u) plus other unknown characters.

4. The determination of vowels should be case-insensitive which means lower and upper-case letters are

treated the same. It is mandatory to use the tolower function. Upcoming quizzes/exams may require the usage of the tolower function.

string sentence;

char letter;

letter = tolower(sentence[c]));

5. The program should also use the switch statement. No credit will be earned if the switch statement is not implemented.

6. Refer to the expected output listing below.

7. Submit your lab13.cpp file on https://turnin.ecst.csuchico.edu/ and get a successful message.

GRADING

To achieve a maximum score, students will need to clearly prove that they completed the goal.

Points lost for incompleteness, sloppiness, lateness, or failure to follow instructions.

Refer to syllabus for late policy.

SAMPLE OUTPUT

/user/faculty/jraigoza/CSCI111/Labs/lab13 $ ./lab13

Please enter a sentence.

CSCI 111 is fun and ENJOYABLE!

Vowel statistics

a: 2

e: 2

i: 2

o: 1

u: 1

unknown: 22 /user/faculty/jraigoza/CSCI111/Labs/lab13 $ ./lab13 Please enter a sentence.

The price is RIGHT.

Vowel statistics

a: 0

e: 2

i: 3

o: 0

u: 0

unknown: 14 /user/faculty/jraigoza/CSCI111/Labs/lab13 $ ./lab13 Please enter a sentence.

Who are the Chainsmokers?

Vowel statistics

a: 2

e: 3

i: 1

o: 2

u: 0

unknown: 17 /user/faculty/jraigoza/CSCI111/Labs/lab13 $