class Piece For Critique

[codingN00b2017]

This is not a question problem. More of a solved code that I would appreciate advice on.

I do already know about the "using namespace std;" and "std::" before lines.
I just like utilizing "using namespace std;", because since I am a beginner at this, it helps me keep my code clean as possible.

#include <iostream>
#include <iomanip>
#include <string>

using namespace std;


class RetailItem
{
private:
	string description;
	int onHand;
	double itemPrice;
public:
	RetailItem()
	{
		description = "<Clear>";
		onHand = 0;
		itemPrice = 0;
	}
	RetailItem(string desc, int qty, double cost)
	{
		description = desc;
		onHand = qty;
		itemPrice = cost;
	}
	
	string getDescription() { return description; } //Getters
	int getUnits() { return onHand; }
	double getPrice() { return itemPrice; }

	void SetDescription(string desc) { description = desc; } //Setters
	void SetUnits(int qty) { onHand = qty; }
	void SetPrice(double cost) { itemPrice = cost; }
}; 

int main()
{
	RetailItem Items[3]; 

	Items[0].SetDescription("Shirt");    // Setting up each item's data can be done two ways.
	Items[0].SetUnits(10);               // Array addressing: [0],[1],[2]
	Items[0].SetPrice(33.00);            // Constructor Assigning the Data: RetailItem Item1("Shirt", 10, 33.00);
	Items[1].SetDescription("Jeans");
	Items[1].SetUnits(40);
	Items[1].SetPrice(34.95);
	Items[2].SetDescription("Long Sleeve Shirt");
	Items[2].SetUnits(20);
	Items[2].SetPrice(24.95);

	for (int i = 0; i <= 2; i++);
	
	cout << "Welcome to The Retail Store!!\n" << endl;

	cout << "Item : " << Items[0].getDescription() << endl;
	cout << "Qty  : " << Items[0].getUnits() << endl;
	cout << fixed << setprecision(2) << "Price: " << "$" << Items[0].getPrice() << "\n" << endl;
	cout << "Item : " << Items[1].getDescription() << endl;
	cout << "Qty  : " << Items[1].getUnits() << endl;
	cout << fixed << setprecision(2) << "Price: " << "$" << Items[1].getPrice() << "\n" << endl;
	cout << "Item : " << Items[2].getDescription() << endl;
	cout << "Qty  : " << Items[2].getUnits() << endl;
	cout << fixed << setprecision(2) << "Price: " << "$" << Items[2].getPrice() << "\n" << endl;
	cout << "The Total Inventory is: " << (Items[0].getUnits() + Items[1].getUnits() + Items[2].getUnits()) << endl;
	cout << "The Total Inventory Woth is: " << "$" << ((Items[0].getUnits() * Items[0].getPrice()) + (Items[1].getUnits() * Items[1].getPrice()) +
		(Items[2].getUnits() * Items[2].getPrice())) << "\n" << endl;

	system("pause");
}

I only use system pause because the VS 2017 shuts down the program after successfully running it without letting me see the results.

Have at it.

[coder777]

I just like utilizing "using namespace std;", because since I am a beginner at this, it helps me keep my code clean as possible.

I don't see what these 5 letters less has to do with keeping code clean.

You can directly initialize your array since you have the appropriate constructor:

RetailItem Items[] = {{"Shirt", 10, 33.00}, {"Jeans", ...}, ...};

Note that the size of the array is determined by the compiler.

The loop on line 51 is useless. It can be written it like so:

	cout << "Welcome to The Retail Store!!\n" << endl;

	for (int i = 0; i < std::size(Items); i++) // Note: No ; / std::size(Items) to determine the array size
	{
		cout << "Item : " << Items[i].getDescription() << endl;
		cout << "Qty  : " << Items[i].getUnits() << endl;
		cout << fixed << setprecision(2) << "Price: " << "$" << Items[i].getPrice() << "\n" << endl;
	}

Note that std::size(Items) is C++17. You may use the C++11 std::end(Items) - std::begin(Items) as a replacement.

This way you can change the array at any time without changing any other line of code.