![main() Method Begins
• public static void main(String[] args) {
• CoffeeOrderingSystem2 t = new
CoffeeOrderingSystem2();
• Scanner scanner = new Scanner(System.in);
• - Creates object t to access non-static
methods.
• - Scanner initialized for input.
• - Displays welcome message.](https://image.slidesharecdn.com/coffeeorderingsystemkanakkumar-250623164608-7cfc9694/85/Coffee-ordering-system-using-java-cosole-5-320.jpg)
Coffee ordering system using java cosole
- 1. Project Overview • Project Title: Coffee Ordering System in Java • Developed By: Kanak Kumar • This Java console-based program allows users to order different types of coffee with optional additions like whipped cream and flavors, calculates the bill including tax, and accepts user rating at the end.
- 2. Class and Method Introduction • public class CoffeeOrderingSystem2 { • - Defines the main class of the program. • - Class contains methods for cream addition, flavor selection, and main order logic.
- 3. Method - cream() • int cream() { • Scanner scanner = new Scanner(System.in); • ... • return c == 1 ? 30 : 0; • } • - Takes user input: Do they want whipped cream? • - If yes (1), adds ₹30 to the bill.
- 4. Method - flavor() • int flavor() { • Scanner scanner = new Scanner(System.in); • ... • return switch(c) { • case 1 -> yield 20; • ... • default -> yield 0; • };
- 5. main() Method Begins • public static void main(String[] args) { • CoffeeOrderingSystem2 t = new CoffeeOrderingSystem2(); • Scanner scanner = new Scanner(System.in); • - Creates object t to access non-static methods. • - Scanner initialized for input. • - Displays welcome message.
- 6. Coffee Selection Menu • do { • System.out.println("choose your coffee..."); • choice = scanner.nextInt(); • } while(choice > 11 || choice < 0); • - Menu-driven coffee selection using a do- while loop. • - Validates user input between 1 to 11.
- 7. Coffee Choice Handling (Switch) • switch(choice) { • case 1 -> { • System.out.println("LATTE"); • bill += 200; • bill += t.cream(); • bill += t.flavor(); • } • ... • }
- 8. Tax Calculation and Final Bill • double taxbill = 0; • if(bill > 0) { • taxbill = bill + (0.18 * bill); • System.out.println("Total bill = " + taxbill); • } • - If a valid coffee was selected, adds 18% GST to the bill.
- 9. User Rating & Feedback • System.out.println("Rate us 0 to 5"); • int r = scanner.nextInt(); • for(int i = 1; i <= r; i++) { • System.out.println("* "); • } • - Takes rating input. • - Displays stars (*) according to user feedback.
- 10. Final Summary • ✅ Object-Oriented Design • ✅ Scanner for User Input • ✅ switch-case & if-else usage • ✅ Looping (do-while, for) • ✅ GST Calculation • ✅ Real-world simulation in console • Developed by: Kanak Kumar