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import java.util.Scanner;

/**
 * CS121 Spring 2020
 * Project 2 - Etown Cafe
 *
 * @author Sean O'Brien
 * @since 4/3/2020
 *
 */
public class EtownCafe {

	// all the drink names
	static String[] drinkNames = {"*No Selection*", "Cappuccino", "Espresso", "Chai Latte", "Matcha Green Tea Lattle",
									"English Breakfask Tea", "Hot Chocolate", "Apple Juice", "Cold Coffee", "Iced Tea"};

	// the corresponding drink prices
	static double[] drinkPrices = {0.00, 5.50, 4.99, 3.99, 4.50, 4.00, 4.50, 2.99, 4.5, 4.00};


	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);

		String customerName = "";
		double totalCost = 0;
		int i = 0;
		int m = 0;

		System.out.println("***** Welcome to Etown Cafe! *****");
		System.out.print("What's your first name?");
		customerName = in.nextLine();


		displayMenu();


		 System.out.print(customerName + ", how many drinks would you like to order?");
		 int orders = in.nextInt();

		 System.out.println();

		 if(orders == 0) {
			 System.out.print("You didn't order any drinks.");
		 }
		 else {


		 int[] drinkOrders = new int[orders];
		 for( i = 0 ; i < orders; i++) {
			 System.out.print("Please enter a drink # for order " + (i+1) + ":");
			drinkOrders[i] = in.nextInt();
		 }

		 System.out.println();

		 System.out.println("Your order consists of:");
		 for(int j = 0 ;j < drinkOrders.length; j++) {
			 System.out.printf(drinkNames[drinkOrders[j]] + " -- $" + " %.2f\n", drinkPrices[drinkOrders[j]]);
		 }
		}
		 System.out.println();

		// TODO: getting the total cost by calling the getTotalCost() method
		totalCost = getTotalCost();

		// print out the total cost
		System.out.printf("\nThank you, %s. Your order is $%.2f dollars in total.", customerName, totalCost);
	}






	/**
	 * display the drinks menu
	 * */
	public static void displayMenu() {

		System.out.println();
		System.out.println("** Etown cafe menu **");

		for (int i = 0; i < drinkNames.length; i++) {
			System.out.printf(i + ". " + drinkNames[i] + " -- $" + " %.2f\n",drinkPrices[i]);
		}




		System.out.println();

	}


	/**
	 * Calculate the total cost of the drink orders.
	 * @param orders - an array of drink indices ordered by the customer
	 * @return total - the total cost of the drink orders
	 * */
	public static double getTotalCost(int[] orders) {
		double total = 0.0;

		// TODO: compute the total cost of the drink orders
		for(int i = 0 ; i < orders.length; i++) {
			total = total + orders[i];
		}


		return total;
	}


}