COP 3337 TCC Water Steel Air C Plus Plus Program

This is based on a Programming Challenge in your textbook. This table shows the approximate speed of sound in air, water, and steel.

MediumSpeed

Air	1,100 feet per second
Water	4,900 feet per second
Steel	16,400 feet per second

Write a program that does the following:

• Display a menu allowing the user to select air, water, or steel. Prompt the user and allow them to enter a choice. User entry should be a character: ‘A’ for air, ‘W’ for water, and ‘S’ for steel. Allow both uppercase and lowercase as valid entries
• If the user enters an invalid choice, print an appropriate error message and end the program.
• For a valid choice, now ask the user to enter the distance that a sound wave will travel through the selected medium. (Use type double for this entry).
• If the selected distance is negative, this is an invalid choice, so print an error message and end the program.
• For a valid distance, compute and display the amount of time it will take for the sound wave to travel the given distance, rounded to 4 decimal places.

Sample Runs

(user input is underlined, to distinguish it from output)

Sample run 1

Welcome to Sound Wave CalculatorSelect the medium the sound wave will travel through. A Air W Water S Steel> AHow far will the sound wave travel (in feet)? 3500 The sound wave will travel 3.1818 secondsGoodbye

Sample run 2

Welcome to Sound Wave CalculatorSelect the medium the sound wave will travel through. A Air W Water S Steel> wHow far will the sound wave travel (in feet)? 3500The sound wave will travel 0.7143 secondsGoodbye

Sample run 3

Welcome to Sound Wave CalculatorSelect the medium the sound wave will travel through. A Air W Water S Steel> sHow far will the sound wave travel (in feet)? 98765The sound wave will travel 6.0223 secondsGoodbye

Sample run 4

Welcome to Sound Wave CalculatorSelect the medium the sound wave will travel through. A Air W Water S Steel> zIllegal entry. Aborting program.Goodbye

Sample run 5

Welcome to Sound Wave CalculatorSelect the medium the sound wave will travel through. A Air W Water S Steel> SHow far will the sound wave travel (in feet)? -10Distance cannot be negative. Aborting program.Goodbye