Hello,
I am trying to figure out how to correct my errors. I am new at this and this is due today. The actual assignment is ....
Modify the Inventory Program to include an Add button, a Delete button, and a Modify
button on the GUI. These buttons should allow the user to perform the corresponding
actions on the item name, the number of units in stock, and the price of each unit. An
item added to the inventory should have an item number one more than the previous last
item.
• Add a Save button to the GUI that saves the inventory to a C:\data\inventory.dat file.
• Use exception handling to create the directory and file if necessary.
• Add a search button to the GUI that allows the user to search for an item in the inventory
by the product name. If the product is not found, the GUI should display an appropriate
message. If the product is found, the GUI should display that product’s information in the
GUI.
Here are my errors
C:\IT315\Inventory6\Inventory6.java:42: cannot find symbol
symbol : class GUI
location: class Inventory6
GUI gui = new GUI(inventory); // Start the GUI
^
C:\IT315\Inventory6\Inventory6.java:42: cannot find symbol
symbol : class GUI
location: class Inventory6
GUI gui = new GUI(inventory); // Start the GUI
Here is my code
import java.util.*; // using java libraries
public class Inventory6 {
public static void main(String[] args) {
FeatDVD dvd;
Inventory inventory = new Inventory();
dvd = new FeatDVD(0, "Bad Boys", 5, 12.99, "Comedy");
inventory.add(dvd);
dvd = new FeatDVD(1, "Color Purple", 7, 14.99, "Drama");
inventory.add(dvd);
dvd = new FeatDVD(2, "Madea Family Reunion", 6, 13.99, "Drama");
inventory.add(dvd);
dvd = new FeatDVD(3, "Diary of a Mad Black Woman", 3, 15.99, "Drama");
inventory.add(dvd);
dvd = new FeatDVD(4, "Forest Gump", 8, 11.99, "Comedy");
inventory.add(dvd);
dvd = new FeatDVD(5, "How Stella Got Her Groove Back", 2, 12.99, "Drama");
inventory.add(dvd);
dvd = new FeatDVD(6, "What's love Got to do With it", 7, 15.99, "Drama");
inventory.add(dvd);
dvd = new FeatDVD(7, "Purple Rain", 7, 11.99, "Drama");
inventory.add(dvd);
inventory.display();
GUI gui = new GUI(inventory); // Start the GUI
OutputDVD output = new OutputDVD(inventory);
} // end main
} // end class Inventory6
/**** Class decribes DVD while demostrating polymorphism and inheritance**/
class DVD implements Comparable
{
private int dvditem;
private String dvdtitle;
private int dvdstock;
private double dvdprice;
// Constructor
DVD()
{
dvditem = 0;
dvdtitle = "";
dvdstock = 0;
dvdprice = 0;
}// end constructor
//constructor initializes variables
DVD(int item, String title, int stock, double price)
{
this.dvditem = item;
this.dvdtitle = title;
this.dvdstock = stock;
this.dvdprice = price;
}
private void setTitle( String title )
{
this.dvdtitle = title;
}
public String getdvdTitle()
{
return dvdtitle;
}
private void setdvdItem( int item )
{
this.dvditem = item;
}
public int getdvdItem()
{
return dvditem;
}
private void setdvdStock( int stock )
{
this.dvdstock = stock;
}
public int getdvdStock()
{
return dvdstock;
}
private void setdvdPrice (double price )
{
this.dvdprice = price;
}
public double getdvdPrice()
{
return dvdprice;
}
public double getValue()
{
double value = dvdstock * dvdprice;
return value;
}
// This method tells the sort method what is to be sorted
public int compareTo(Object o)
{
return dvdtitle.compareTo(((DVD) o).getdvdTitle());
}
// This method passes the format for the string
public String toString()
{
return String.format("Unit number:%d %12s Units:%2d Price: $%5.2f Movie value: $%6.2f",
dvditem, dvdtitle, dvdstock, dvdprice, getValue());
}
} // end class DVD
/**** This is a subclass that adds 5% restocking fee and new feature genres***/
class FeatDVD extends DVD
{
private String genres;
// class constructor
FeatDVD(int item, String title, int stock, double price, String genres)
{
super(item, title, stock, price);
this.genres = genres;
}
public String getGenres()
{
return genres;
}
public double getValue()
{// getvalue method overrides
// getvalue method in the superclass
double value = 1.05F * super.getValue();
return value;
}// end getValue method
public String toString()
{//toString method overrides the superclass toString method
//adding another fields
return super.toString() + "Genre:" + genres;
}// end toString method
} // end class FeatDVD
/*****class has inventory of DVDs.
* This class has methods to add and display dvds****/
class Inventory
{
private DVD[] dvds;
private int nCount;
// constructor
Inventory()
{
dvds = new DVD[8];
nCount = 0;
}
public int getNcount()
{
return nCount;
}
// method adds DVD to inventory
public void add(DVD dvd)
{
dvds[nCount] = dvd;
++nCount;
sort();
}
public void delete(int n)
{
if (nCount > 0)
{
dvds[n] = dvds[nCount-1];
--nCount;
sort();
}
}
public int search(String seek)
{
int n = -1
for (int i = 0; i < nCount; i++) {
if (seek.equalsIgnoreCase(dvds[i].getdvdTitle())) {
n = i;
break;
}
}
return n;
}
public FeatDVD getFeatDVD(int n)
{
return (FeatDVD) dvds[n];
}
// method calculates total value of inventory
public double getTotalValue()
{
double totalValue = 0;
for (int i = 0; i < nCount; i++)
totalValue = dvds[i].getValue();
return totalValue;
} // end getTotalValue
public DVD getDVD(int n) //use in GUI
{// protects n and keep in range
if (n<0)
n = 0;
else if (n >= nCount)
n = nCount - 1;
return (n >= 0) ? dvds[n] : null;
}
// sorts the DVDs
private void sort()
{
if (nCount > 0)
Arrays.sort(dvds, 0, nCount);
}// end sort method
public void display()
{
for (int i = 0; i < nCount; i++)
System.out.printf("%2d: %s\n", i, getFeatDVD(i));
}
} // end class Inventory