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  1. #1
    badness is offline Member
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    Default Inventory part 3 program problems

    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;
    }
    }

  2. #2
    hardwired's Avatar
    hardwired is offline Senior Member
    Join Date
    Jul 2007
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    Default

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

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