Exercise #1

• Use ex1_readdata.cpp in Visual Studio project or copy the following code into your IDE: /************************************************* * Student Name: * Student Number: * Assignment Number: CS 110 Lab 3 exercise 1 * Program Name: ex1_readdata.cpp * Last Modified: * * ------ Problem Statement ----- * This exercise is designed for you to practice effective * and clear Prompt/Read interactions. Make sure the user * knows what to enter - including expected data type and * units. * * ------ Input and Output ------ * Input: * - The integer length and width of a piece of glass in inches * - The price of glass per square foot * Output: * - Nicely formatted feedback echoing the inputs * - A correct final price for the given inputs * * REFER TO SAMPLE CODING TEMPLATE OR YOUR PROFESSOR'S REQUIREMENTS * FOR MORE. * * Add short comments in the code to explain each change you make. *************************************************/ #include <iostream> #include <iomanip> using namespace std; const int inchesInSqFt = 144; int main() { int length; // measured in inches int width; // measured in inches float price; // sold by square foot float cost; /********************************************************************* * To complete the program, replace this comment with code that * prompts the user and reads input data for the three variables: * length, width, and price. *********************************************************************/ // Feedback cout << fixed; cout << "Width: " << setw(6) << width << " in." << endl << "Length: " << setw(6) << length << " in. " << endl << "Price: $" << setw(6) << setprecision(2) << price << " per Sq. Ft." << endl; // Results cost = ((width * length) / inchesInSqFt) * price; cout << "The cost of the glass is $" << setw(6) << cost << endl; return 0; }
  

The purpose of the program is to practice prompting for INPUT from the standard input device (the keyboard) and to demonstrate OUTPUT to the standard output device (screen) with formatting.

• Add code and comments to the program to complete it.
  
  
• Compile and run this C++ program.
  Try these input values:
  • (length: 12, width: 24, price: 5)
  • (length: 6, width: 12, price: 5)
Do you get zero cost for the latter?
If yes, check the data types of variables in the formula for calculating the cost.
You need to handle data conversion.

When you are done:

• Take a screenshot of your IDE and console window after running the program with both input values (above)
• For this exercise, you have added comments and code to ex1_readdata.cpp. Complete all the exercises in this lab and upload the .cpp files and the corresponding screenshots for the output.