Question

Surfer Sam’s has a sale this Saturday, you need to reprogram the tills for the sale. Write the Java code.

Ask for a product price. If the total price is less than or equal to $100, apply a discount of 3% to the total sale. If the price is more than $100 and less than or equal to 500, apply a discount of 5% to the total sale. If the price is higher than $500, apply a discount of 8% to the total sale. Add the GST and print out the: original price, the discount amount, GST and final price. The following is a sample, user input is shown in bold underline:

1^st Sample Run:

Enter the price: 699.90

Description              Amount

Price                    699.90

% Discount                 8.00

Discount                  55.99

Summary                  643.91

GST                       32.20

Final Price              676.10

2^nd Sample Run:

Enter the price: 29.95

Description              Amount

Price                     29.95

% Discount                 3.00

Discount                   0.90

Summary                   29.05

GST                        1.45

Final Price               30.50

Solve this problem using doubles.

please answer in java

Answer 1

CODE -

import java.util.Scanner;

public class sale

{

public static void main(String[] args) {

// Variable initialization double discount_per = 0, discount, totalPrice, gst, finalPrice;

Scanner keyboard = new Scanner(System.in);

// Take price as input from user

System.out.print("Enter the price: ");

double price = keyboard.nextDouble();

// Close the scanner

keyboard.close();

// Determine the discount percentage according to the price

if(price <= 100)

discount_per = 3;

else if (price <= 500)

discount_per = 5;

else if (price > 500)

discount_per = 8;

  

// Calculate the discount

discount = (discount_per * price) / 100;

// Calculate the price after discount

totalPrice = price - discount;

// Calculate the GST

gst = (5 * totalPrice) / 100;

// Calculate final price after including GST

finalPrice = totalPrice + gst;

// Displaying the details

System.out.printf("%-17s %s\n", "Description", "Amount");

System.out.printf("%-15s %8.2f\n", "Price", price);

System.out.printf("%-15s %8.2f\n", "/% Discount", discount_per);

System.out.printf("%-15s %8.2f\n", "Discount", discount);

System.out.printf("%-15s %8.2f\n", "Summary", totalPrice);

System.out.printf("%-15s %8.2f\n", "GST", gst);

System.out.printf("%-15s %8.2f\n", "Final Price", finalPrice);

}   

}

SCREENSHOTS -

CODE -

OUTPUT -

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