Really, really easy but need help

Question

This question is very easy but I just began java and I need help. I need to write a simple program to display an invoice with item name, number, quantity, and price. I am going to use two classes but I can't figure out how to create instances to make the items display. Can anyone help?

Answer 1

here you go, hope the following code helps
public class InvoiceTest
     public static void main(String[] args)
          Invoice in = new Invoice("375ml fanta", 1234, 10, 1.5);
          System.out.println(in.toString());
public class Invoice
     private String itemName;
     private int itemNumber;
     private int quantity;
     private double price;
     private double totalPrice;
     public Invoice(String name, int num, int qua, double price)
          itemName = name;
          itemNumber = num;
          quantity = qua;
          this.price = price;
     public String getItemName()
          return itemName;
     public int getItemNumber()
          return itemNumber;
     public int getQuantity()
          return quantity;
     public double getPrice()
          return price;
     public double getTotalPrice()
          totalPrice = (double)(price * quantity);
          return totalPrice;
     public String toString()
          return "invoice detail: \n"
                 + "item name: " + getItemName() + "\n"
                 + "item number: " + getItemNumber() + "\n"
                 + "quantity: " + getQuantity() + "\n"
                 + "price:" + getPrice() + "\n"
                 + "total price: " + getTotalPrice();
}