Add two constructors as followings:

1) A default constructor which initializes 0 to number class member variables and (null) to the string variables.

2) A contactor with four parameters.

Submission Guide:

Upload THREE files (one header file, one implementation file, one client program) and a screenshot that shows testing results of the two constructors.

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// This program passes an object to a function. It passes it

// to one function by reference and to another by value.

#include

#include

#include

using namespace std;

class InventoryItem

{

private:

int partNum; // Part number

string description; // Item description

int onHand; // Units on hand

double price; // Unit price

public:

void storeInfo(int p, string d, int oH, double cost); // Prototype

int getPartNum()

{ return partNum; }

string getDescription()

{ return description; }

int getOnHand()

{ return onHand; }

double getPrice()

{ return price; }

};

// Implementation code for InventoryItem class function storeInfo

void InventoryItem::storeInfo(int p, string d, int oH, double cost)

{ partNum = p;

description = d;

onHand = oH;

price = cost;

}

// Function prototypes for client program

void storeValues(InventoryItem&); // Receives an object by reference

void showValues (InventoryItem); // Receives an object by value

//*************** main *****************

int main()

{

InventoryItem part; // part is an InventoryItem object

storeValues(part);

showValues(part);

return 0;

}

/**********************************************************

* storeValues *

* This function stores user input data in the members of *

* an InventoryItem object passed to it by reference. *

* ********************************************************/

void storeValues(InventoryItem &item)

{

int partNum; // Local variables to hold user input

string description;

int qty;

double price;

// Get the data from the user

cout << "Enter data for the new part number ";

cout << "Part number: ";

cin >> partNum;

cout << "Description: ";

cin.get(); // Move past the ' ' left in the

// input buffer by the last input

getline(cin, description);

cout << "Quantity on hand: ";

cin >> qty;

cout << "Unit price: ";

cin >> price;

// Store the data in the InventoryItem object

item.storeInfo(partNum, description, qty, price);

}

/********************************************************

* showValues *

* This function displays the member data stored in the *

* InventoryItem object passed to it by value. *

********************************************************/

void showValues(InventoryItem item)

{

cout << fixed << showpoint << setprecision(2) << endl;;

cout << "Part Number : " << item.getPartNum() << endl;

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

cout << "Units On Hand: " << item.getOnHand() << endl;

cout << "Price : $" << item.getPrice() << endl;

}