Kalaimani

 import java.text.DecimalFormat; class ProductExcludingTax {     private String productName;     private int quantity;     private double price;     private double taxRate;     public ProductExcludingTax(String productName, int quantity, double price, double taxRate) {         this.productName = productName;         this.quantity = quantity;         this.price = price;         this.taxRate = taxRate;     } public double calculateTotalAmount() {         double totalAmount = quantity * price;         double taxAmount = totalAmount * taxRate;         return totalAmount + taxAmount;     }     public void display() {         DecimalFormat df = new DecimalFormat("#.##");         double totalAmount = calculateTotalAmount();   ...