import javax.swing.*;

public class Cashier {
	public static void main(String[] args) {
		String item;
		double total = 0.0, milkPrice = 3.50, bottleWaterPrice = 1.0;
		double sugarPrice = 1.25;
		
		// Notice you can have if inside of whiles.  There is a better way
		// to write the if.  We will take a look at that latter on
		do {
			item = JOptionPane.showInputDialog("Enter Item Description");
			if (item.equals("milk")) {
				total = total + milkPrice;
			} else {
				if (item.equals("bottleWater")) {
					total = total + bottleWaterPrice;
				} else {
					if (item.equals("sugar")) {
						total = total + sugarPrice;
					}
				}
			}
		} while (!item.equals("end"));
		
		JOptionPane.showMessageDialog(null, "Amount Due: $" + total);
		System.exit(0);
	}
}