Installation and Configuration
Programming Methodology

Inventory System in C++ with Product Classes and Purchase-Sale Operations

In this exercise, you will develop a simple inventory management system in C++ using classes. You will create classes to represent products in the inventory and provide operations for purchasing and selling products. The system will include functionalities to add products to the inventory, update stock after a purchase or sale, and display the product details. This project will help you understand object-oriented programming concepts like classes, objects, methods, and basic inventory management logic in C++.

Group

Object-Oriented Programming in C++

Objective

1. Create a class called "Product" with attributes such as name, price, and quantity in stock.
2. Implement methods for buying and selling products, which will update the stock based on the quantity purchased or sold.
3. Add a method to display the product's details including its name, price, and quantity in stock.
4. Implement a main function where you can create a product, simulate purchases and sales, and display updated product information.

Develop an Inventory system with classes for products and operations for purchase and sale.

Example C++ Exercise

 Copy C++ Code 
#include <iostream>  // Include the standard input/output library
#include <string>  // Include the string library
using namespace std;

// Define the 'Product' class to represent a product in the inventory
class Product {
private:
    string name;  // Product name
    double price;  // Product price
    int quantity;  // Quantity in stock

public:
    // Constructor to initialize the product with its details
    Product(string n, double p, int q) {
        name = n;
        price = p;
        quantity = q;
    }

    // Method to buy a certain quantity of the product (add to stock)
    void buy(int amount) {
        quantity += amount;  // Increase the quantity by the purchase amount
        cout << amount << " units of " << name << " purchased." << endl;
    }

    // Method to sell a certain quantity of the product (decrease stock)
    void sell(int amount) {
        if (quantity >= amount) {
            quantity -= amount;  // Decrease the quantity by the sale amount
            cout << amount << " units of " << name << " sold." << endl;
        } else {
            cout << "Not enough stock to sell " << amount << " units." << endl;
        }
    }

    // Method to display the product details (name, price, quantity)
    void displayInfo() {
        cout << "Product: " << name << endl;
        cout << "Price: $" << price << endl;
        cout << "Quantity in stock: " << quantity << endl;
    }
};

int main() {
    // Create a product called 'Laptop' with a price of $1000 and 10 units in stock
    Product laptop("Laptop", 1000.0, 10);

    // Display the initial product information
    laptop.displayInfo();

    // Simulate a purchase of 5 units
    laptop.buy(5);

    // Simulate a sale of 8 units
    laptop.sell(8);

    // Display the updated product information
    laptop.displayInfo();

    // Attempt to sell more units than available
    laptop.sell(10);

    return 0;  // Return 0 to indicate successful execution
}

 Output

Product: Laptop
Price: $1000
Quantity in stock: 10
5 units of Laptop purchased.
8 units of Laptop sold.
Product: Laptop
Price: $1000
Quantity in stock: 7
Not enough stock to sell 10 units.

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