Question

Modify your Online Book Order program from week 4 to prompt the users for the number of books they are purchasing. Using a for loop, prompt the user for the cost of each book and store it into a subtotal. Use the subtotal and the number of books to pass to your method. No changes should be needed to your method or parameters.

Output a receipt formatted as the following:

Enter the number of books purchased: 4 Enter the book price for Book 1: 12.34 Enter the book price for Book 2: 23.33 Enter the book price for Book 3: 11.00 Enter the book price for Book 4: 13.55 Number of books purchased: 4 Book Subtotal: $60.22 ------------------------ Order Total: $69.53

Verify that your tests still pass (they should - you made no changes to your method!) Submit your .java file. I don't need the tester file. It's worth 10 points.

Answer 1

bookPurchase.java

import java.util.Scanner;

public class bookPurchase{

public static void main(String args[]){

Scanner bookSr = new Scanner(System.in);

System.out.println("Enter the number of books purchased:");

int noBooks = bookSr.nextInt();

int i=0;

double total = 0;

while(i<noBooks){

i++;

System.out.println("\nEnter the book price for Book "+i);

total = total + bookSr.nextDouble();

}

System.out.println("\n----------------------------\n");

System.out.println("Number of books purchased "+noBooks);

System.out.println("Book Subtotal is: $"+total);

System.out.println("\n----------------------------\n");

// There was no information given about calculating Order Total, hence I've assumed tax

// Tax has been added to total, and adding it to total

// Imp Comment : orderTotal is different as tax % is assumed percentage

double tax = ( total * 15 ) / 100;

double orderTotal = total + tax;

System.out.println("Order Total: $"+ orderTotal);

bookSr.close();

}

}

Screenshots of working output

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2.

Please let me know in the comments if any additions are needed.

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