public class Tiprate
{
    public static void main(String[] args)
    {
        //declare variables
        double subtotal, taxRate, tipFifteen, tipEighteen, tipTwenty, tip, tax, total;

        //set intinal values
        subtotal = 30;
        taxRate = 0.095;
        tipFifteen = 0.15;
        tipEighteen = 0.18;
        tipTwenty = 0.2;

        //15% tip
        System.out.println("\nBill with 15% tip");
        System.out.print("\n");
        System.out.println("---------------------");
        System.out.print("\n");
        System.out.println("Subtotal: $" + subtotal);

        tip = subtotal * tipFifteen;

        System.out.println("Tip: $" + tip);

        tax = (subtotal + tip) * taxRate;

        System.out.println("Tax: $" + tax);

        total = subtotal + tip + tax;

        System.out.println("Total Bill : $" + total);

        //18% tip
        System.out.println("\n\nBill with 18% tip");
        System.out.print("\n");
        System.out.println("---------------------");
        System.out.print("\n");
        System.out.println("Subtotal: $" + subtotal);

        tip = subtotal * tipEighteen;

        System.out.println("Tip: $" + tip);

        tax = (subtotal + tip) * taxRate;

        System.out.println("Tax: $" + tax);

        total = subtotal + tip + tax;

        System.out.println("Total Bill : $" + total);

        //20% tip
        System.out.println("\n\nBill with 20% tip");
        System.out.print("\n");
        System.out.println("---------------------");
        System.out.print("\n");
        System.out.println("Subtotal: $" + subtotal);

        tip = subtotal * tipTwenty;

        System.out.println("Tip: $" + tip);

        tax = (subtotal + tip) * taxRate;

        System.out.println("Tax: $" + tax);

        total = subtotal + tip + tax;

        System.out.println("Total Bill : $" + total);

    }
}