retailItem.java

import java.util.Scanner;

public class retailItem {
    private String description;
    private int unitsOnHand, quantityPurchased;
    private double price,subtotal,tax,total;

    retailItem (String description, int units, double p, int quantity) {
        this.description = description;
        this.unitsOnHand = units;
        this.price = p;
        this.quantityPurchased = quantity;
    }

    void setItem (String desciption, int units, double p, int quantity) {
        
        this.unitsOnHand = units;
        this.price = p;
        this.quantityPurchased = quantity;
    }

    void setUnits (int units) {
        this.unitsOnHand = units;
    }

    void setPrice (double p) {
        this.price = p;
    }

    void setQuantity (int quantity) {
        this.quantityPurchased = quantity;
    }

    public String getDesc () {
        return description;
    }

    public int getUnits () {
        return unitsOnHand;
    }

    public double getPrice () {
        return price;
    }

    public int getQuantity () {
        return quantityPurchased;
    }

    public double calcSubtotal (int quantity, double price) {
        double subtotal = quantity*price;

        return subtotal;
    }

    public double calcTax (double subtotal) {
        double tax = subtotal*0.06;

        return tax;
    }

    public double calcTotal (double subtotal, double tax) {
        double total = subtotal + tax;

        return total;
    }

    public String toString (){
        
        return (
                "[Item Description]Name: " + description
                        + "\nUnits Available: " + unitsOnHand
                        + "\nPrice: RM" + price
                        + "\nQuantity Purchased: " + quantityPurchased
                        + "\n------------------\nSubtotal: RM" + calcSubtotal(quantityPurchased,price)
                        + "\nTax: RM" + calcTax(subtotal)
                        + "\nTotal: RM" + calcTotal(subtotal,tax)
                );
    }

    public static void main (String[]args) {
        retailItem item1 = new retailItem ("T-Shirt", 50, 24.95, 8);
        retailItem item2 = new retailItem ("Denim Jacket", 30, 69.99, 5);

        item1.setPrice(29.95);
        item1.toString();
        item2.setUnits(35);
        item2.toString();
        
        retailItem item3 = new retailItem ();

        Scanner input = new Scanner(System.in);

        System.out.print("Item Name: ");
        item3.setDesc(input.nextLine());

        System.out.print("Units Available: ");
        item3.setUnits(Integer.parseInt(input.nextLine()));

        System.out.print("Price: ");
        item3.setPrice(Double.parseDouble(input.nextLine()));

        System.out.print("Units Purchased: ");
        item3.setQuantity(Integer.parseInt(input.nextLine()));

        item3.toString();
    }
}