Answer to Question #298027 in C++ for sadwe

Question

Create a C++ program that reads 5 items and their prices and quantities. The program's basic requirements are as follows.

1.Declare four arrays of five elements each: item, price, quantity, and amount.

2. Declare the functions computeAmount, computeTotalAmount, displayItems, and strNew.

3.The expected output is depicted in the figure below.

strNew code:

//function that will adjust the string into specified length by adding spaces
string strNew(string str, int n) {
	int l;
	l = n - str.length();
	for (int i = 1; i <= l; i++) {
		str = str + " ";
	}
	return str;
}//end of strNew function

Output Example

Enter Item 1: Milk

Enter the price: 125.75

Enter the quantity: 3

Enter Item 2:

Enter Item 3:

Enter Item 4:

Enter Item 5:

Amount: 377.25

Total Amount: 377.25

=========================

Item Qty Price Amount

Milk 3 125.75 377.25

Cake 2 500 1000

Spaghetti 1 700 700

Fruits 10 50 500

Waffle 7 45 315

Answer 1

#include<iostream>
#include<string>

using namespace std;

double computeAmount(double prc, int qnt)
{
	return prc*qnt;
}

double computeTotalAmount(double amount[],int N)
{
	double res=0;
	for(int i=0;i<N;i++)
	{
		res+=amount[i];
	}
	return res;
}

string strNew(string str, int n)
{
	int l;
	l=n-str.length();
	for(int i=1;i<=l;i++)
	{
		str=str+" ";
	}
	return str;
}

void displayItems(string item[], double price[], int quantity[],double amount[],int N)
{
	cout<<"\nItem    Qty Price Amount\n";
	for(int i=0;i<N;i++)
	{
		cout<<strNew(item[i],8)<<quantity[i]<<"   "
			<<price[i]<<"     "<<amount[i]<<endl;
	}
}

int main()
{
	const int N=2;
	string item[N];
	double price[N];
	int quantity[N];
	double amount[N];
	for(int i=0;i<N;i++)
	{
		cout<<"Enter item "<<i+1<<": ";
		cin>>item[i];
		cout<<"Enter the price: ";
		cin>>price[i];
		cout<<"Enter the quantity: ";
		cin>>quantity[i];
		amount[i]=computeAmount(price[i],quantity[i]);
		cout<<"Amount: "<<amount[i]<<endl;
	}
	cout<<"\nTotal amount: "<<computeTotalAmount(amount,N)<<endl;
	displayItems(item,price,quantity,amount,N);
	
}