Programming Assignment 1

#include <iostream>

#include<iomanip>

#include<fstream>

#include<sstream>

#include<string.h>

using namespace std;

//Define the main function

int main()

{

    //Create the object of fstream class and opening the file

    ifstream inpfile(“order.txt”);

    string fline;

    double sub_total, tax, shipping=14.95, grand_total, line_total;

    double priceA=17.46, priceB=10.13, priceC=2.11, priceD=23.13, priceE=74.56, priceF=1.11, priceG=9.34, priceH=3.45;

    cout<<“Thank You! Your order is summarized below: “<<endl;

    cout<<“———————————————–“<<endl;

    cout<<“| Product\t|Quantity\t|Line total  |”<<endl;

    cout<<“———————————————–“<<endl;

    while (getline(inpfile, fline))  {

        istringstream ists(fline);

        string product;

        int quantity;

        if (!(ists >>product>> quantity)) {

            break;

        }

        else{

            if(product==”A”)

                line_total=quantity*priceA;

            else if (product==”B”)

                line_total=quantity*priceB;

            else if (product==”C”)

                line_total=quantity*priceC;

            else if (product==”D”)

                line_total=quantity*priceD;

            else if (product==”E”)

                line_total=quantity*priceE;

            else if (product==”F”)

                line_total=quantity*priceF;

            else if (product==”G”)

                line_total=quantity*priceG;

            else if (product==”H”)

                line_total=quantity*priceH;

            cout<<“| “<<setw(2)<<product<<“\t\t| “<<setw(2)<<quantity <<“\t\t| “<<fixed<<setprecision(2)<<setw(10)<<line_total<<setw(2)<<” |”<<endl;

            cout<<“———————————————–“<<endl;

            sub_total=sub_total+line_total;

        }

        tax=sub_total*0.17;

        grand_total=sub_total+tax+shipping;

    }

    cout<<“| “<<setw(2)<<“Sub_total”<<“\t| “<<setw(2)<<” ” <<“\t\t| “<<fixed<<setprecision(2)<<setw(10)<<sub_total<<setw(2)<<” |”<<endl;

    cout<<“———————————————–“<<endl;

    cout<<“| “<<setw(2)<<“Tax”<<“\t\t| “<<setw(2)<<” ” <<“\t\t| “<<fixed<<setprecision(2)<<setw(10)<<tax<<setw(2)<<” |”<<endl;

    cout<<“———————————————–“<<endl;

    cout<<“| “<<setw(2)<<“Shipping”<<“\t| “<<setw(2)<<” ” <<“\t\t| “<<fixed<<setprecision(2)<<setw(10)<<shipping<<setw(2)<<” |”<<endl;

    cout<<“———————————————–“<<endl;

    cout<<“| “<<setw(2)<<“Grand Total”<<“\t| “<<setw(2)<<” ” <<“\t\t| “<<fixed<<setprecision(2)<<setw(10)<<grand_total<<setw(2)<<” |”<<endl;

    cout<<“———————————————–“<<endl;

    inpfile.close();

    return 0;

}

Programming Assignment 2

#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

int main()
{
    float lowerTemp,higherTemp,increment;
    cout<<“Please Enter the lower value for the conversion table (Celsius)”;
    cin>> lowerTemp;
    cout<<“Please Enter the higher value for the conversion table (Celsius)”;
    cin>> higherTemp;
    //input validation
    if(lowerTemp > higherTemp){
        cout<<“lower value should not greater that higher value”;
        return 1;
    }
    cout<<“what do you want to use for incremented value”;
    cin>> increment;
    if(increment <= 0){
        cout<<“The increament value should be greater than 0.”;
        return 1;
    }

    ofstream write_data;
    write_data.open(“conversion_table.txt”);
    if(!write_data) { //error
      cerr << “Error in opening the file.” << endl;
      exit(1);
    }

    //print heading
    write_data << “C \t F \t N” <<endl;
    //compute temp equivalent
    //save data into the file
    while (lowerTemp <= higherTemp){
        float f = (9/5) * lowerTemp + 32;
        float n = 0.33 * lowerTemp;
        write_data << fixed << setprecision(2) <<lowerTemp << “\t” <<
        setprecision(2) << f << “\t” << setprecision(2) << n <<endl;
        lowerTemp += increment;
    }
    cout<<“\nData is saved in the file.”;
    write_data.close();
    return 0;
}

Question-

1. • Address any questions or misconceptions the reviewer may have posted. (I like your program! I don’t see very many things to nitpick at. Perhaps, instead of using “cout << “—————” << endl;” you could use something along the lines of “cout << setw(10) << setfill(‘-‘) << “-” << endl;” in case you wanted to change that part or prevent changes to how it looks on different screens. Good job on the comments and everything.) 
   • Indicate how useful the feedback was. 
   • Did you understand the comments/observations/suggestions?
   • Did the review point out flaws/shortcomings in your program?
   • Did you learn anything from the critique?
   • Did the process help you better understand the original programming assignment? would you modify your program based on the feedback/observations?