0 {      public static void main(String[] args) {         // TODO Auto-generated method stub         Scanner input = new Scanner(System.in);         System.out.println("How many shirts do you need?");         double shirts = input.nextInt();         if (shirts <= 0)             System.out.printf("The extended cost is : $%.0", (shirts * 00.00));             System.out.printf("The shipping charges are $00.00");             System.out.printf("The total cost is : $%.0", (