Hello, please help with the following, Thank you. Modify your program to overloa

Question

Hello, please help with the following, Thank you.

Modify your program to overload the insertion (<<) and extraction (>>) operators in classInventoryType.  

Submission instructions:

1. Submit screenshots demoing your program for both operators.

2. Submit a copy of the class definition and your test program (function main() ) in a text file.

3. Submit a copy of the input file used to test program.

************************************************************This is my program***************************

myClient.cpp

#include <iostream>

#include "InventoryItem.h"

using namespace std;

int main()

{

InventoryItem item;

item.setDescription("Item1");

cout << "Description obtained: " << item.getDescription() << endl;

item.setQuantityOnHand(10);

cout << "Quantity obtained: " << item.getQuantityOnHand() << endl;

InventoryItem item2("Item2", 20);

cout << "Description obtained: " << item2.getDescription() << endl;

cout << "Quantity obtained: " << item2.getQuantityOnHand() << endl;

system("pause");

return 0;

}

InventoryItem.h

#ifndef INVENTORYITEM_H

#define INVENTORYITEM_H

#include <string>

using namespace std;

class InventoryItem

{

private:

string description;

int quantityOnHand;

public:

InventoryItem();

InventoryItem(string, int q);

string getDescription();

int getQuantityOnHand();

void setDescription(string);

void setQuantityOnHand(int);

};

#endif

InventoryItem.cpp

#include <iostream>

#include <iomanip>

#include <string>

#include <cctype>

#include "InventoryItem.h"

using namespace std;

InventoryItem::InventoryItem()

{

}

InventoryItem::InventoryItem(string d, int q)

{

description = d;

if (q < 0) q = 0;

quantityOnHand = q;

}

string InventoryItem::getDescription() {

return description;

}

Explanation / Answer

Given below is the code with the operators << and >> implemented. In the code given in the question, the setDescription() , setQuantityOnHand() and getQuantityOnHand() were missing in the cpp file. So added those too. The client file is modified to use the << and >> for I/O. Please do rate the answer if it helped. Thank you.

InventoryItem.h

#ifndef INVENTORYITEM_H
#define INVENTORYITEM_H
#include <iostream>
using namespace std;
class InventoryItem
{
private:
string description;
int quantityOnHand;
public:
InventoryItem();
InventoryItem(string, int q);
string getDescription();
int getQuantityOnHand();
void setDescription(string);
void setQuantityOnHand(int);
friend istream& operator >> (istream &in, InventoryItem &item);
friend ostream& operator << (ostream &os, InventoryItem &item);
};

#endif

InventoryItem.cpp

#include <iostream>
#include <iomanip>
#include <string>
#include <cctype>
#include "InventoryItem.h"
using namespace std;
InventoryItem::InventoryItem()
{
}
InventoryItem::InventoryItem(string d, int q)
{
description = d;
if (q < 0) q = 0;
quantityOnHand = q;
}
string InventoryItem::getDescription() {
return description;
}

int InventoryItem::getQuantityOnHand()
{
return quantityOnHand;
}
void InventoryItem::setDescription(string desc) {
description = desc;
}

void InventoryItem::setQuantityOnHand(int q) {
if(q < 0) q = 0;
quantityOnHand = q;
}

istream& operator >> (istream &in, InventoryItem &item)
{
string desc;
int qty;

in >> desc;

in >> qty;
item.setDescription(desc);
item.setQuantityOnHand(qty);
return in;
}

ostream& operator << (ostream &out, InventoryItem &item)
{
out << "Description obtained: " << item.getDescription() << endl;
out << "Quantity obtained: " << item.getQuantityOnHand() << endl;
return out;
}

myClient.cpp

#include <iostream>
#include <fstream>
#include "InventoryItem.h"
using namespace std;
int main()
{
InventoryItem item;
//using set functions
item.setDescription("Item1");
item.setQuantityOnHand(10);
cout << item << endl; //using << operator

//using parametrizied constructor
InventoryItem item2("Item2", 20);
cout << item2 << endl; //using << operator

//reading from inventory.txt file
string filename;
cout << "Enter input filename containing inventory data: ";
cin >> filename;

ifstream infile(filename);
if(!infile.is_open())
{
cout << "Could not read input file " << filename << endl;
return 1;
}

InventoryItem item4;
cout << "Reading data from file using >> .... " << endl;
while(infile >> item4)
cout << item4 << endl;

infile.close();
return 0;
}

inputfile : inventory.txt

bag 5
shoes 10
shirt 25

output

Description obtained: Item1
Quantity obtained: 10

Description obtained: Item2
Quantity obtained: 20

Enter input filename containing inventory data: inventory.txt
Reading data from file using >> ....
Description obtained: bag
Quantity obtained: 5

Description obtained: shoes
Quantity obtained: 10

Description obtained: shirt
Quantity obtained: 25

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