import java.util.Scanner;
import java.text.NumberFormat;
public class InvoiceApp
{
public static voice main(String[] args)
{
// create a Scanner object and start while loop
Scanner sc = new Scanner(System.in);
String choice = "y";
while (choice.equalsIgnoreCase("y"))
{
// get the input from the user
System.out.print("Enter subtotal: ");
double subtotal = sc.nextDouble();
// calculate the results
double discountPercent = 0.0;
if (subtotal >= 100)
discountPercent = .1;
else
discountPercent = 0.0;
double discountAmount = subtotal * discountPercent;
double totalBeforeTax = subtotal - discountAmount;
double salesTax = totalBeforeTax * .05;
double total = totalBeforeTax + salesTax;
// format and display the results
NumberFormat currency = NumberFormat.getCurrencyInstance();
NumberFormat percent = NumberFormat.getPercentInstance();
String message =
"Discount percent: " + percent.format(discountPercent) + "\n"
+ "Discount amount: " + currency.format(discountAmount) + "\n"
+ "Total before tax: " + currency.format(totalBeforeTax) + "\n"
+ "Sales Tax: " + currency.format(salesTax) + "\n"
+ "Invoice total: " + currency.format(total) + "\n";
System.out.println(message);
// see if the user wants to continue
System.out.print("Continue (y/n): ");
choice = sc.next();
System.out.println();
}
}
}
*******************************************************
output:
Enter subtotal: 150.50
Discount percent: 10%
Discount amount: $15.05
Total before tax: $135.45
Sales tax: $6.77
Invoice total: $142.22
Continue? (y/n):
*******************************************************
undefined
undefined