andrewhelpsme

import java.util.Random;
import java.util.Scanner;

public class CustomerSim
{
	public static void main(String[] args)
	{
		final double COFFEE_PRICE = 1.5;
		final double LATTE_PRICE = 3.5;
		final double CAPPUCCINO_PRICE = 3.25;
		final double ESPRESSO_PRICE = 2.0;

		final String COFFEE_NAME = "Coffee";
		final String LATTE_NAME = "Latte";
		final String CAPPUCCINO_NAME = "Cappuccino";
		final String ESPRESSO_NAME = "Espresso";

		int selection, quantity, numCustomers, runAnotherSimulation = 0;
		double totalCost = 0.0;
		String selectionName = "";
		Random randomNumbers = new Random();
		Scanner keyboard = new Scanner(System.in);

		// use a do-while loop to allow for multiple simulations
		do
		{
			// prompt the user for number of customers
			System.out.print("\nEnter the number of customers: ");
			numCustomers = keyboard.nextInt();

			// print the table header
			System.out.printf("\n%-15s%-15s%12s%18s\n", "Customer", "Selection",
							  "Quantity", "Total Cost($)");
			System.out.printf("%-15s%-15s%12s%18s\n", "--------", "---------",
							  "--------", "-------------");

			// simulate n customers
			for (int i = 1; i <= numCustomers; i++)
			{
				// generate the customer selection and quantity
				// 0 - Coffee
				// 1 - Latte
				// 2 - Cappuccino
				// 3 - Espresso
				// assumption: quantity is in the range 1 - 5
				selection = randomNumbers.nextInt(4);
				quantity = randomNumbers.nextInt(5) + 1;

				// based on the selection, set the name and compute the total cost
				switch(selection)
				{
					case 0:		// Coffee
						selectionName = COFFEE_NAME;
						totalCost = quantity * COFFEE_PRICE;
						break;
					case 1:		// Latte
						selectionName = LATTE_NAME;
						totalCost = quantity * LATTE_PRICE;
						break;
					case 2:		// Cappuccino
						selectionName = CAPPUCCINO_NAME;
						totalCost = quantity * CAPPUCCINO_PRICE;
						break;
					case 3:		// Espresso
						selectionName = ESPRESSO_NAME;
						totalCost = quantity * ESPRESSO_PRICE;
						break;
				}

				System.out.printf("%-15s%-15s%12d%18.2f\n", "Customer " + i, selectionName,
								  quantity, totalCost);
			} // end of for loop

			// prompt the user about running another simulation
			System.out.print("\nEnter a 1 to run another simulation or 0 to exit: ");
			runAnotherSimulation = keyboard.nextInt();

		} while(runAnotherSimulation == 1);
	}
}