How to Create a Simple Billing System in C++
Introduction
Hey there! It’s Abhishek here again! Today, I’m going to guide you through creating a simple billing system in C++. Have you ever been to a supermarket and received an invoice after checkout? Well, we’re going to recreate a basic version of that in C++!
Requirements
All you need is a bit of brainpower and some familiarity with C++.
Let’s Get Started!
You can use your favorite code editor! First, let’s include two essential libraries:
#include <iostream>
#include <string>
using namespace std;
We’ll also use using namespace std; to avoid typing std:: repeatedly.
class Item {
public:
int id;
string name;
int price;
};
Here, we’ve defined a class called Item, which serves as the blueprint for our invoice. It has three member variables: id, name, and price.
Now, let’s create a function to display the invoice:
void display(Item items[], int size, string customerName) {
This line declares a function named display that takes three parameters:
items[]: An array of Item objects representing the items to be displayed.
size: An integer representing the size of the array.
customerName: A string representing the name of the customer.
int total = 0;
This line declares an integer variable total and initializes it to 0. This variable will store the total price of all items in the invoice.
system("cls"); // Clear the screen
This line uses the system function to execute a command that clears the console screen. This helps in displaying the invoice cleanly.
cout << "\n\n\n";
cout << "\t Abhishek Store\n";
cout << "\t------------------- \n";
cout << "\n";
cout << "Name: " << customerName << "\n";
These lines print the header of the invoice, including the store name and customer name, to the console.
for (int i = 0; i < size; i++) {
This line starts a for loop that iterates over each item in the items array.
cout << "ID: " << items[i].id << endl;
cout << "Item name: " << items[i].name << endl;
cout << "Price: " << items[i].price << endl;
cout << "======================================" << endl;
These lines print the details of each item, including its ID, name, and price, to the console. They also print a separator line between items.
total += items[i].price;
This line adds the price of the current item to the total variable, calculating the cumulative total price of all items.
}
cout << "Total: " << total << endl;
cout << "\n\n";
cout << "Thanks for visiting the Abhishek Store!\n";
}
These lines print the total price of all items and a closing message to the console, indicating the end of the invoice display.
int main() {
This line declares the main function, which serves as the entry point of the program.
cout << "Hello...\n";
string customerName;
int totalItems;
cout << "Please enter your name: ";
cin >> customerName;
cout << "Please enter total items: ";
cin >> totalItems;
cout << "\n";
These lines prompt the user to enter their name and the total number of items for the invoice and store the inputs in the customerName and totalItems variables, respectively.
Item items[totalItems];
for (int i = 0; i < totalItems; i++) {
items[i].id = i + 1;
cout << "Enter item " << i + 1 << " name: ";
cin >> items[i].name;
cout << "Enter price: ";
cin >> items[i].price;
}
These lines declare an array of Item objects named items and populate it with details entered by the user for each item in the invoice.
display(items, totalItems, customerName);
return 0;
}
This line calls the display function to display the invoice, passing the items array, totalItems, and customerName as arguments. Finally, the main function returns 0 to indicate successful execution of the program.
And that’s it! You’ve created a simple billing system in C++. Feel free to customize and enhance it further based on your requirements.
This is Abhishek signing off! Adieu!!