Program1
public class BookPriceCalculator { public static void main(String[] args) { String productName = "Book"; int quantity = 5; double taxRate = 0.1; // Assuming tax rate is 10% double originalPrice = 20.0; // Assuming original price of each book is $20 // Calculate tax amount double taxAmount = originalPrice * taxRate; // Calculate total price including tax double totalPrice = (originalPrice + taxAmount) * quantity; // Print out the details System.out.println("Product name: " + productName); System.out.println("Quantity: " + quantity); System.out.println("Original Price per book: $" + originalPrice); System.out.pr...