// ***********************************************************************
//   InventoryItem.java          Author: Lewis/Loftus (with modification)
//
//   Represents an item in the inventory.
// ***********************************************************************

import java.text.DecimalFormat;

public class InventoryItem
{
    private String name;
    private int units;     // number of available units of this item
    private float price;   // price per unit of this item
    private DecimalFormat fmt;

    // ----------------------------------------------------------------
    //  Sets up this item with the specified information.
    // ----------------------------------------------------------------
    public InventoryItem (String itemName, int numUnits, float cost)
    {
	name = itemName;
	units = numUnits;
	price = cost;
	fmt = new DecimalFormat ("0.##");
    }

    // ----------------------------------------------------------------
    //  Returns information about this item as a string
    // ----------------------------------------------------------------
    public String toString()
    {
	return name + ":\t" + units + " at " + price + " = " +
	    fmt.format ((units * price));
    }

    // ---------------------------------------------------------------
    //  Returns the name of the item.
    // ---------------------------------------------------------------
    public String getName()
    {
	return name;
    }

    // ---------------------------------------------------------------
    //   Returns the number of available units of the item
    // ---------------------------------------------------------------
    public int getUnits ()
    {
	return units;
    }

    // ---------------------------------------------------------------
    //   Returns the price of the item.
    // ---------------------------------------------------------------
    public float getPrice()
    {
	return price;
    }


    // ---------------------------------------------------------------
    //   Adds the specified number to the available units
    // ---------------------------------------------------------------
    public void restock (int addedUnits)
    {
	units += addedUnits;
    }
}