package horstmann.ch05_invoice;
/**
   A simple invoice formatter.
 */
public class SimpleFormatter implements InvoiceFormatter
{
	public String formatHeader()
	{
		total = 0;
		return "     I N V O I C E\n\n\n";
	}

	public String formatLineItem(LineItem item)
	{
		total += item.getPrice();
		return (String.format(
				"%s: $%.2f\n",item.toString(),item.getPrice()));
	}

	public String formatFooter()
	{
		return (String.format("\n\nTOTAL DUE: $%.2f\n", total));
	}

	private double total;
}