Inventory part 3 program problems

[badness]

Hello all. I wonder if someone would mind taking a look at my code and tell me what I need to do to fix this program that won't compile. It is an inventory program. Thanks a bunch. It is having issues at the end with the last class that I added.

public class Inventory3 {

public static void main(String args []) {

DVD dvd;


dvd = new DVD(1, "The Fellowship of the Ring", 5, 14.95);
System.out.println(dvd);

dvd = new DVD(2, "The Chamber", 7, 12.99);
System.out.println(dvd);

dvd = new DVD(3, "Superman 3", 6, 19.99);
System.out.println(dvd);

dvd = new DVD(4, "Van Helsing", 3, 10.99);
System.out.println(dvd);

} //end main

} // end class Inventory3


class DVD {
private int dvdItem;
private String dvdTitle;
private int dvdStock;
private double dvdPrice;

public DVD(int item, String title, int stock, double price) {
dvdItem = item;
dvdTitle = title;
dvdStock = stock;
dvdPrice = price;
} //end constructor

// set DVD Item
public void setDvdItem(int item) {
dvdItem = item;
} //end method set Dvd Item

//return DVD Item
public int getDvdItem() {
return dvdItem;
} //end method get Dvd Item

//set DVD Title
public void setDvdTitle(String title) {
dvdTitle = title;
} //end method set Dvd Title

//return Dvd Title
public String getDvdTitle() {
return dvdTitle;
} //end method get Dvd Title

public void setDvdStock(int stock) {
dvdStock = stock;
} //end method set Dvd Stock

//return dvd Stock
public int getDvdStock() {
return dvdStock;
} //end method get Dvd Stock

public void setDvdPrice(double price) {
dvdPrice = price;
} //end method setdvdPrice

//return DVD Price
public double getDvdPrice() {
return dvdPrice;
} //end method get Dvd Price

//calculate inventory value
public double value() {
return dvdPrice * dvdStock;
} //end method value

public String toString() {

return String.format("item=%3d title=%-20s units=%d price=%.2f value=%.2f",
dvdItem, dvdTitle, dvdStock, dvdPrice, value());
}

} //end class DVD

// Inventory class, used to manage a bunch of Product classes.


class Inventory {
DVD movies[] = new DVD[100];

// Add to inventory
public void addToInventory(DVD movie) {
}

// Get inventory value
public double getInventoryValue() {
Inventory myInventory = new Inventory();
myInventory.addToInventory(new DVD(1, "Remember the Titans", 5,
14.95));
// Print out the inventory total value
System.out.println("Total value of inventory is: " +
myInventory.getInventoryValue());
return myInventory.getInventoryValue();
}
}

// To store by the year the movie was made

class DVDYr extends Product {

// Year the move was made

private int movieyear;


public DVDYr(int productId, String itemname, int quantity, double itemprice, int year) {


super(productId, itemname, quantity, itemprice);
movieyear = year;
}


public void setYear(int year) {
movieyear = year;
}

// Get the year of this DVD product

public int getYear() {
return movieyear;
}

// add a 5% restocking fee on top

public double getItemValue() {
return super.getItemValue() * 1.05;
}


public double getRestockingFee() {
return super.getItemValue() * .05;
}
}

[hardwired]

First compile attempt shows we're missing the Product class:

C:\jexp>javac inventorytest.java
inventorytest.java:93: cannot find symbol
symbol: class Product
class DVDYr extends Product {
                    ^
inventorytest.java:112: cannot find symbol
symbol  : variable super
location: class DVDYr
        return super.getItemValue() * 1.05;
               ^
inventorytest.java:116: cannot find symbol
symbol  : variable super
location: class DVDYr
        return super.getItemValue() * .05;
               ^
3 errors