Question

Write a program that emulates a simple shopping cart. a. Calculate and display the subtotal, tax and total cost. b. Use a constant variable to set a fixed tax rate of 8.875. c. Use escape characters for column alignment. d. Display correct dollar values (2 decimal places, use cout precision). e. Align data using the iomanip library column width commands. Example Output (input in bold italics )

Answer 1

// PLEASE LIKE THE SOLUTION All parts are Done

// For this example lets take 5 items 1.Toffee 2.Biscuit 3.Banana 4.Apple 5.Soap

// A c++ Program
#include<bits/stdc++.h>
using namespace std;

int main(){
  
   // Part-2 storing tax rate in a variable
   string items[5] = {"Toffee","Biscuit","Banana","Apple","Soap"};

   double taxRate = 8.875;

   // Part-1 Calculate subtotal Tax Total Cost

   // First asking user to get quantity of eah item
  
   int i,j,k;
   int itemQuantity[5];
   for(i=0; i<5; i++){
       cout<<"Enter the quantity of "<<items[i]<<" ";
      
       cin>>itemQuantity[i];
   }
  
   // Set item price per unit in same order
   int itemPricePerUnit[5] = {8,5,20,40,50};

   long int subTotal=0;
  
   double tax;
  
   long int totalPerItem[5];
   for(i=0; i<5; i++){
       totalPerItem[i] = itemPricePerUnit[i] * itemQuantity[i];
   }
  
   // calculate subtotal
   for(i=0; i<5; i++){
       subTotal = subTotal + totalPerItem[i];
   }
   //calaculate tax
tax = ((double)(subTotal*taxRate/100));
  
   cout<<endl;

  

   //Printing the table using escape sequence and functions iomanip
  
   //set seperator and width
   char separator = ' ';
   cout << left << setw(5) <<"S.N."<<setfill(separator) << setw(15) <<"ItemName"<<setfill(separator)<< setw(25) <<"PricePerUnit($)"<<setfill(separator)<<setw(15) <<"Total($)"<<setfill(separator)<<endl;

   for(i=0; i<5; i++){
       cout << left << setw(5) <<(i+1)<<setfill(separator) << setw(15) <<items[i]<<setfill(separator)<< setw(25) <<itemPricePerUnit[i]<<setfill(separator)<<setw(15) <<totalPerItem[i]<<setfill(separator)<<endl;
   }

   // Printing subtotal and tax
   cout<<endl;
   cout<<"SubTotal is "<<subTotal<<"$"<<endl;

  

   // setting precision
   cout<<"Tax "<<setprecision(4)<<tax<<"$"<<endl;
  
   cout<<"Total Cost "<<setprecision(5)<<(subTotal+tax)<<"$"<<endl;

   return 0;
}
  

//Output Terminal