Example: Simple Console Bill in C++

// Simple Console Bill
#include <iostream>
#include <iomanip> // Required for formatting output

int main() {
    // Step 1: Define item details
    std::string item1Name = "Laptop";
    int item1Qty = 1;
    double item1Price = 1200.00;

    std::string item2Name = "Mouse";
    int item2Qty = 2;
    double item2Price = 25.00;

    std::string item3Name = "Keyboard";
    int item3Qty = 1;
    double item3Price = 75.00;

    // Step 2: Calculate total for each item
    double item1Total = item1Qty * item1Price;
    double item2Total = item2Qty * item2Price;
    double item3Total = item3Qty * item3Price;

    // Step 3: Calculate Subtotal, Tax, and Grand Total
    double subtotal = item1Total + item2Total + item3Total;
    double taxRate = 0.08; // 8% tax
    double taxAmount = subtotal * taxRate;
    double grandTotal = subtotal + taxAmount;

    // Step 4: Print the bill header
    std::cout << "----------------------------------------\n";
    std::cout << std::setw(20) << "YOUR RECEIPT\n";
    std::cout << "----------------------------------------\n";
    std::cout << std::left << std::setw(15) << "Item"
              << std::right << std::setw(5) << "Qty"
              << std::right << std::setw(10) << "Price"
              << std::right << std::setw(10) << "Total\n";
    std::cout << "----------------------------------------\n";

    // Step 5: Print individual item details
    std::cout << std::left << std::setw(15) << item1Name
              << std::right << std::setw(5) << item1Qty
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item1Price
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item1Total << "\n";

    std::cout << std::left << std::setw(15) << item2Name
              << std::right << std::setw(5) << item2Qty
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item2Price
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item2Total << "\n";

    std::cout << std::left << std::setw(15) << item3Name
              << std::right << std::setw(5) << item3Qty
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item3Price
              << std::right << std::setw(10) << std::fixed << std::setprecision(2) << item3Total << "\n";

    std::cout << "----------------------------------------\n";

    // Step 6: Print summary totals
    std::cout << std::left << std::setw(25) << "Subtotal:"
              << std::right << std::setw(15) << std::fixed << std::setprecision(2) << subtotal << "\n";

    std::cout << std::left << std::setw(25) << "Tax (" << (taxRate * 100) << "%):"
              << std::right << std::setw(15) << std::fixed << std::setprecision(2) << taxAmount << "\n";

    std::cout << "----------------------------------------\n";

    std::cout << std::left << std::setw(25) << "Grand Total:"
              << std::right << std::setw(15) << std::fixed << std::setprecision(2) << grandTotal << "\n";
    std::cout << "----------------------------------------\n";
    std::cout << "Thank You!\n";

    return 0;
}