Java Inventory part 4 problem

[blitz1989]

Hello all, I'm new to this forum and Java and having a alot of problems understanding this language. I am working on an invetory program part 4. The assignment requirements are listed but the reading has very little in it that helps can someone take a look at this code and point me in the right direction please. Thanks for any help that is offered.

//Modify the Inventory Program to use a GUI. The GUI should display the
//informationone product at a time, including the item number, the name of the
//product, the number of units in stock, the price of each unit, and the value of
//the inventory of that product. In addition, the GUI should display the value of
//the entire inventory, the additional attribute,and the restocking fee.

[code=java]
import java.util.Scann er; // program uses class Scanner

public class Invprogram4
{
public static void main(String args [])// main method begins application
{
Inventory theinventory = new Inventory();
theinventory.pr intitem(1);
theinventory.pr intitem(2);
theinventory.pr intitem(3);
theinventory.pr intitem(4);
theinventory.pr intitem(5);
theinventory.pr intitem(6);

} //End main Method


} //End class Invprogram4

class Inventory
{
Stock[] stockarray = new Stock[10];//declares and sets up array

public Inventory()
{
stockarray[1] = new Stock(1, "Hand Forged Forks", 5, 2.00);
stockarray[2] = new Stock(2, "Hand Forged Spoons", 5, 2.00);
stockarray[3] = new Stock(3, "Hand Forged Knives", 5, 3.00);
stockarray[4] = new Stock(4, "Hand Forged Hinged Sporks", 10, 5.00);
stockarray[5] = new Stock(5, "Throwing Knife Blanks", 5, 15.00);
stockarray[6] = new Forkprongs(6, "Forkprongs ", 5, 10.00, 2);
}//close constructor

public void printitem(int i)
{
System.out.prin tln("The Item number is " + stockarray[i].getproductUPC( ));
System.out.prin tln("The Product Name is " + stockarray[i].getproductName ());
System.out.prin tln("The number of units in stock is " + stockarray[i].getproductQuan tity());
System.out.prin tln("The price per piece is " + stockarray[i].getproductPric e());
System.out.prin tln("The value of the inventory is " + stockarray[i].getStockValue( ));
}//close printitem method


public void getTotalValue() // total value getStockValue
{
int total = 0;

for ( int i=1; i<6; i++ ) total += stockarray[i].getStockValue( );
System.out.prin tf("Total of stockarray elements %d\n", total);
}


}//close class Inventory

class Stock

{

private double productUPC; // Item number or Universial Product Code
private String productName;//name of product
private double productQuantity ;//number of pieces in stock
private double productPrice; //price per piece
private double productValue; //price of all pieces in a UPC

public Stock(double upc, String name, double quantity, double price)
{
//assign variables
productUPC = upc;
productName = name;
productQuantity = quantity;
productPrice = price;
} //end constructor

//collection of set and get methods

public void setproductUPC(d ouble upc)
{ productUPC = upc; }

public double getproductUPC()
{ return productUPC; }

public void setproductName( String name)
{ productName = name; }

public String getproductName( )
{ return productName; }

public void setproductQuant ity(double quantity)
{ productQuantity = quantity; }

public double getproductQuant ity()
{ return productQuantity ; }

public void setproductPrice (double price)
{ productPrice = price; }

public double getproductPrice ()
{ return productPrice; }

public double getStockValue()
{ return this.getproduct Price() * productQuantity ; }


} //end class Stock

// This class defines types of forks named forkprongs it is a subclass of forks.
//It is a stock, but has the extra feature of having prongs as a type and adds a
//5% restocking fee.

class Forkprongs extends Stock
{ // starts subclass
private int productNumProng s;

public Forkprongs(doub le UPC, String Name, double Quantity, double Price,
int NumProngs)
{
super(UPC, Name, Quantity, Price);
productNumProng s = NumProngs;
}

public double getproductPrice ()
{
double productPrice = super.getproduc tPrice();
return (productPrice * 1.05);
}


// set and get method for subclass
public void setproductNumPr ongs(int NumProngs)
{ productNumProng s = NumProngs; }

public int getproductNumPr ongs()
{ return productNumProng s; }

}// end class Forkprongs
[/code]

[blitz1989]

OK, I just came back to this and discovered my spelling was horrific. I apologize.

[JosAH]

Your current classes have set up a 'model' of your stock and a bit of a 'view'
that displays the entire inventory (btw, arrays start their index values at 0, not
at the value 1). Your last assignment wants you to replace your 'view' by a GUI
based view, not just the console.

For starters have a look at the JFrame class, you'll definitely need it and have
a look at the JTable class; it can display the 'records' of your inventory. There
isn't much of a 'controller' in your program because you don't want to, or have to
do much with your inventory, you just have to display it.

kind regards,

Jos