Question

Write a C++ program that calculates the discount of the original price of an item and displays the new price, and the total amount of savings. This program should have a separate header (discount.h), implementation (discount.cpp) and application files (main.cpp). The program must also have user input: the user must be prompted to enter data (the original price, and the percent off as a percentage). There must also be a validation, for example:

Output: “Enter the original price of the item”

User input: “29”

Output: “Now enter the percent discount”

User input: “0.10”

Output: “Please enter the discount as a percentage”

Now the user input: “10”

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The user input should be stored within an object. Be sure to use mutators to assign values to Class Variables. Classes should also include functions which will manipulate/calculate data for the final result (both the calculated discount and the total savings). When the final results are calculated/processed, the program should store the final results (discounted price and savings) as a text file. The final result should also be accompanied with any context which should help a reader understand what the results mean (“the original price of the item was “user inputted price,” with a “user inputted percent discount,” the new price of the item is “calculated price”! You saved “amount of savings” this much money!

Please leave \\comments and label where Discount.h, Discount.cpp, and main.cpp are, thanks.

Answer 1

//dicount.cpp file

#include<iostream>
#include<fstream>
using namespace std;
class Discount
{
// Access specifier
public:

// Data Members
float amount;
float percentage;
float discount;
float savings;

// Functions()
void calc_discount(float amt,float per)
{amount=amt;percentage=per;
discount=(amount-(percentage*amount/100.0));
savings=amount-discount;
cout << "After discount the amount is: " << discount;
cout<<"savings="<<savings;
ofstream myfile;
myfile.open("newfile.txt");
myfile<<"After discount the amount is: " << discount;
myfile<<"\nsavings= "<<savings;
myfile.close();
}
};

//discount.h file

#include<iostream>
#include<fstream>
using namespace std;
class Discount
{
// Access specifier
public:

// Data Members
float amount;
float percentage;
float discount;
float savings;

// Functions()
void calc_discount(float amt,float per)
{amount=amt;percentage=per;
discount=(amount-(percentage*amount/100.0));
savings=amount-discount;
cout << "After discount the amount is: " << discount;
cout<<"savings="<<savings;
ofstream myfile;
myfile.open("newfile.txt");
myfile<<"After discount the amount is: " << discount;
myfile<<"\nsavings= "<<savings;
myfile.close();
}
};

///main.cpp

#include <iostream>

#include"discount.h"

int main() {

float amount;float percentage;

cout<<"Enter the original price of the item: ";

cin>>amount;

cout<<" Now enter the percent discount: ";

cin>>percentage;

while(percentage<1)

{cout<<"Please enter the discount as a percentage: ";

cin>>percentage;

}

Discount d;

d.calc_discount(amount,percentage);

return 0;

}

Project2. [Project2.dev]- [魟 CAUsers MAHEDocuments Project2.exe File Edit Search View Project Execute Tools AStyle Window Help 回411 (globals) Project Classes Debug ter The or1ginal price of the 1tem:100 Now enter the percent discount: 0.10 lease enter the discount as a percentage: 10 fter avings-10 discount the amount is: main.cpp discount.cpp discount.h #include<fstream> Project2 3using namespace stdj discount.cpp discount.h rocess exited after 15.33 seconds with return value 0 ress any key to continue 4 class Discount IAccess specifier public: Dota Members float amountj Float percentagej float discountj float savings; 18 12 13 newfile - Notepad 15 16 17 18 19 I Functions() void calc_discount (float amt, float per) amount-ant jpercentage-perj File Edit Format View Help After discount the amount is: 90 savings- 1e discount-(anount-(percentage amount/1.)) savings-amount-discounti 23 24 25 26 27 28 cout << "After discount the amount is:"< discount cout<< "Vnsavings,'くくsavings; ofstream myfilej myfile.open("newfile.txt"); myfile<<"After discount the amount is: "<< discount; myfile<<"savings "<<savings; myfile.close) Compiler % Resources ompile Log Debug C Find Result Close Compilation results. Abort -Errors: 0 -Warnings: Shorten compiler paths- Output Filename: C:NesMAHEN DocumentslProject2.exe -Output Size: 1.83428287506104 MiB - Compilation Time: 1.335 Line: 21 Col: 17 Sel: 0 Lines: 28 Length: 705 Done parsing in 0.015 seconds

//all the files are in same directory..