GUI - Problem with GridBag

Question

Hi everyone,
I have been trying to get this GUI built from the ground up and I have encountered a problem with the GridBag(exception error that the fields being added can not be done. Also, my method main seems to be off track, I have a working program which the display fields have been modified to display object and everything else is the same except that I can not get the GUI to run.
The following is the code and any suggestions as to what I can do to get this going will be appreciated. Thank you.
import javax.swing.JLabel; /* displays text and images*/
import javax.swing.SwingConstants; /* common constants used with Swing*/
import javax.swing.Icon; /* interface used to manipulate images*/
import javax.swing.ImageIcon; /* loads images*/
import javax.swing.JOptionPane;
import java.util.*;
import java.io.PrintStream;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.*;     
import javax.swing.JFrame;/* provides basic window features*/     
import java.util.Arrays;
import javax.swing.ImageIcon.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
public class FinalInventoryGUI extends JFrame
{//Private variables.
private GridBagLayout layout = new GridBagLayout();
private GridBagConstraints constraints = new GridBagConstraints();
//Private data from main program
private String productName;
private String itmeNumber;
private double unitPrice;
private int unitStock;
private double productValue;
private double inventoryValue;
private double reStkfee;
//Declaration of the JLabels.
private JLabel logoLabel;
private JLabel productNameLabel;
private JLabel itemNumberLabel;
private JLabel unitPriceLabel;
private JLabel unitStockLabel;
private JLabel productValueLabel;
private JLabel InventoryValueLabel;
private JLabel reStkfeeLabel;
//Declaration of the text Fields for data Entry.     
private JTextField productNameText;
private JTextField itemNumberText;
private JTextField unitPriceText;
private JTextField unitStockText;
private JTextField productValueText;
private JTextField inventoryValueText;
private JTextField reStkfeeText;
private JTextField titleText;
//Declaration of the JButtons for user interface.
private JButton first;//To move to first element in the array.
private JButton next;//To move to next element in the array.
private JButton previous;//To move to next element in the array.
private JButton lastButton;//To move to the first element in the array.
private JButton addButton;//To add a product to the array.
private JButton modifyButton;//To modify an element in the array.
private JButton deleteButton;//To remove a product from the array.
private JButton saveButton;//To save the array elements to C:\.
private JButton searchButton;//To search for an element in the array.
private Product products[];//Declaration of array product[] for storing entries.
private int NumOfProducts;//Declaration of the variable defining the number of products.
private int Index=0;//Setting the counter index to initiate at "0".
//Constants
private final static int LOGO_WIDTH  = 4;
private final static int LOGO_HEIGHT = 4;
private final static int LABEL_WIDTH  = 1;
private final static int LABEL_HEIGHT = 1;
private final static int TEXT_WIDTH  = LOGO_WIDTH-LABEL_WIDTH;
private final static int TEXT_HEIGHT = 1;
private final static int BUTTON_WIDTH  = 1;
private final static int BUTTON_HEIGHT = 1;
private final static int LABEL_START_ROW = LABEL_HEIGHT+LABEL_WIDTH+1;
private final static int LABEL_COLUMN = 0;
private final static int TEXT_START_ROW = LABEL_START_ROW;
private final static int TEXT_COLUMN = LABEL_WIDTH+1;
private final static int BUTTON_START_ROW = LABEL_START_ROW+9*LABEL_HEIGHT;
private final static int BUTTON_COLUMN = LABEL_COLUMN;
private final static int SEARCH_START_ROW = BUTTON_START_ROW+3;
final static String EMPTY_ARRAY_MESSAGE = "Hit ADD to add a new PRODUCT";
//Constructor-New instance of the JLabelTextFieldView.
public FinalInventoryGUI( Product productsIn)
    {//Passing the frame title to JFrame, set the IconImage.
         super("Welcome To The Inventory Program");
         setLayout(layout);
         //Copy the input array(products).
         setProduct(productsIn);//maybe the title?????
         //Start the display with the first element of the array.
         index = 0;
         //Build the GUI
         buildGUI();
         //Values
         updateAllTextFields();
         }//End of the constructor for building the GUI.
         //Methods for copying the input of Product array to the GUIs private array
         //variable
         private void setInventoryArray(Product productsIn[])
              products = new Product[productIn.length];
              for (int i = 0; i<products.length; i++)
              {//Creates A Product array element from the input array.
                   prodcuts[i] = new Product(productIn);
               products[i] = new Product(productIn[i].productName(), productIn[i].itemNumber(),
                                                  productIn[i].unitStock(), productIn[i].unitPrice());
          //System prints out a ineof the productsIn array to a string.
     }//End of the for statment.
     }//End for copying the array.
     //A method for updating each of the GUIs fields.
     private void updateAllTextFields()
          if(products.length > 0)//Then update the JTextField display.
          {// Update the product name text field.
          productNameText.setText(products[index].productName());
          //Update the Update the itemNumber text field.
          itemNumberText.set(String.format("%d", products[index].itemNumber()));
          //Update the title text field.
          titleText.setText(dvd[index].title());
          //Update the unitStock text field.
          unitStockText.setText(String.format("%d",products[index].unitStock()));
          //Update the unit price textField.
          unitPriceText.setText(String.format("$%.2f",products[index].unitPrice()));
          //Update the productValue textField.
          productValueText.setText(String.format("$%.2f", products[index].productValue()));
          //Update the restocking fee text field.
          reStkfeeText.setText(String.format("$%.2f",reStkfee()));
          //Update the total value of the inventory text field.
          inventoryValueText.setText(String.formtat("$%.2f",Product.productValue(products)));
          }//End of the if statement.
          else//Put a special message in the fields.
          {//Update the productName textField.
          productNameText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the itemNumber textField
          itemNumberText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the title textField.
          titleText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the units in stock textField.
          unitStockText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the unitPrice textFied.
          unitPriceText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the productValue textField.
          productValueText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the restocking fee textField.
          reStkfeeText.setText(EMPTY_ARRAY_MESSAGE);
          //Update the totatl inventoryValue textField.
          inventoryValueText.setText(EMPTY_ARRAY_MESSAGE);
          }//End else
     }//Set the appropriate fields editable or uneditable.
     private void setModifiableTextFieldsEnabled(Boolean state)
     {//The fields of the product name, item number, unit price,
     // and stock can be editable or non editable.
     itemNumber.setEditable(state);
     productName.setEditable(state);
     unitPrice.setEditable(state);
     unitStock.setEditable(state);
     }//End setting of the modifiable textFields.
     //Methods for the JButton methods.
     private class ButtonHandler implements ActionListener
          public void actionPerformed(ActionEvent event)
          {//This is the first button being pressed by the user.
               if(event.getSource()==firstButton)
                    handleFirstButton();
               }//End if
               else if(event.getSource()==previousButton)//Button previous is pressed by user.
                    handlePreviousButton();
               }//End else if
               else if (event.getSource()==nextButton)//Button next is pressed by user.
                    handleNextButton();
               }//End else if.
               else if (event.getSource()==lastButton)//Button last is pressed by the user.
                    handleLastButton();
               }//End else if.
               else if(event.getSource()==firstButton)
                    handleFirstButton();
               }//End else if.
     }//End metod of actionPeformed.
     }//End class ButtonHandler
     //Displaying the first element of the Product array
     private void handlerFirstButton()
     {//Setting the index to the first element in the array.
          index = 0;
     //Update and disable modification
     updateAllFields();
     setModifiableTextFieldsEnabled(false);
     }//End method for handling the first button.
     //Displaying the next element of the products array or wrap to the first.
     private void handleNextButton()
     {//Incrementation of the index.
     index++;
     //If the index exceeds the last valid array element, wrap around to the first
     //element of the array.
     if(index > products.length-1)
          index = 0;
     }//End if statment.
     //Update and disable the modification.
     updateAllFields();
     setModifiableTextFieldsEnabled(false);
     }//End method of handleNextButton.     
     private void handlePreviousButton()
          index--;
          if(index < 0)
               index = products.length -1;
          }//End if statment.
          //Update and disabe modification.
          updateAllTextFields();
          setModifiableTextFieldsEnabled(false);
     }//End method of handlePreviousButton.
     private void handleLastButton()
          index--;
          if(index < products.length -1)
               index = 2;
          }//End if statment.
          updateAllTextFields();
          setMdifiableTextFieldsEnabled(false);
          }//End method for handleLatButton
     //The textFieldHandler class - handling the events of the buttonsmethods
     private class TextFieldHandler implements ActionListener
          public void actionPerformed(ActionEvent event)
          {//The user pressed "ENTER" in the JTextField "title" text.
          if(event.getSource() == itemNumber)
               //HandleItemNumberTextField()is fired.
          }//End the if statement.
          //The user pressed "ENTER" in the JTextField "title" text.
          else if (event.getSource() == titleText)
               //HandleTitleTextField() is fired.
          }//End the if statement.
     //The user pressed "ENTER" in the JTextField "unitStoc" text.
          else if(event.getSource() == unitStockText)
               //HandleUnitStockTextField() is fired.
          }//End the if statment
          //The user pressed "ENTER" in the JtextField "unitPrice" text.
          else if (event.getSource() == unitPriceText)
               //HandleUnitPriceTextField() is fired.
          }//End the if statment.
     //The user pressed "ENTER" in the JTextField "Search" text.
     else if(event.getSource() == searchText)
          //HandleSearchTextField() is fired.
     }//End the if statment.
          }//End the method actionPerformed.
     }//End the inner class TextFieldhandler.
          //The GUI methods.
          //Building the GUI.
          private void BuildGUI()
          {//Mthod for adding the LOGO.
          buildLogo();
          //Add the text fields and their labels.
          buildLabels();
          buildTextFields();
          //Add the navigation and other buttons.
          buildMainButtons();
          //Provide value to the Fields.
          updateAllTextFields();
          //provide some setup to the frame.
                    setSize(FRAME_LENGTH, FRAME_WIDTH);
                    setLocation(FRAME-XLOC, FRAME_YLOC);
                    setResizable(false);
                    //PACK(); IS THIS NOT PART OF THE GUI ADDED AT THE END OR IS WHAT
                    //FOLLOWS THE SAME AS SAYING ".PACK()".
                    setDefaultCloseOperation(EXIT_ON_CLOSE);//DOES IT MATTER WHERE THIS LINE FALLS?
                    //WHEN I TRIED TO USE IT IN THE MAIN I RECEIVED AN ERROR AND THE SAME WHEN I
                    //PLACED IT IN THE CONSTRUCTOR--WHY?.
                    setVisible(true);
          }//End of building the GUI.
          //Addin the LOGO to the Frame.
          private void buildLogo()
               constraints.weightx = 2;
               constraints.weigthy = 1;
               logoLabel = new JLabel(new ImageIcon("O2K.jpg"));
               logoLabel.setText("Products Inventory");
               constraints.fill = GridBagConstraints.BOTH;
               addToGridbag(logoLabel,2,2,LOGO_WIDTH, LOGO_HEIGHT);
               //Creating a vertical space.
               addToGridBag(new JLabel(""),LOGO_HEIGHT+1,0, LOGO_WIDTH, LABEL_WIDTH);
          }//End the method with building the LOGO.
               //Build the panel just containing the text.
               private void buildLabels()
               {//Set up if for readability).
               int rows = 0;
               int column = 0;
               int width = 0;
               int height = 0;
          column = LABEL_COLUMN;
          width = LABEL_WIDTH;
          height = LABEL_HEIGHT;
               constraints.weightx = 1;
               constraints.weighty = 0;
                    constraints.fill = GridbagConstraints.Both;
                    //Create the name labes and name the TextFields.
                    productNameLabel = new JLabel("Product Name:");
                    productnamelabel.setLabelfor(productNameField);
                    productNameLabel.setLabelFor(productNameText);
                    productNameLabel.setToolTipText("Enter The Product Name Here");
                    row = Label_START_ROW;          
                    addToGridBag(productNameLabel, row, column, width, height);
                    //Create the itemNumberLabel and TextField.
                    itemNumberLabel = new JLabel("Product Id:");
                    itemNumberLabel.setLabelFor(itemNumberText);
                    row += LABEL_HEIGHT;
                    addToGridBag(itemNumber, row, column, width, height);
                    //Create the title label for the Product and the title text field.
                    titleLabel = new JLabel("Inventory Of Products:");
                    titleLabel.setLabelFor(titleText);
                    row += LABEL_HEIGHT;
                    addToGridBag(titleLabel,row,column,width,height);
                    //Create the unitStock label and textField.
                    unitStockLabel = new JLabel("Units In Stock:");
                    unitStockLabel.setLabelFor(unitStockLabel);
                    row += LABEL_HEIGHT;
                    addToGridBag(unitStocklabel, row, column, height);
                    //Creat the unitPrice label and textField.
                    unitPriceLabel = new JLabel("Unit Price");
                    unitPriceLabel.setLabelFor(unitPriceLabel);
                    unitPriceLabel.setToolTipText("The Cost Of The Product");
                    row += LABEL_HEIGHT;
                    addToGridBag(unitPriceLabel, row, column, height);
                    //Create the productValue label and textField.
                    productValueLabel = new JLabel("Total Product Value:");          
                    productValueLabel.setLabelFor(productValueLabel);
                    row += LABEL_HEIGHT;
                    addToGridBag(productValue, row, column, height);
                    //Create the restocking fee of 1.05% Label and textField.
                    reStkfeeLabel = new JLabel("Product Restock Fee:");
                    reStkfeeLabel.setLabelFor(reStkfeeLabel);
                    row+= LABEL_HEIGHT;
                    addToGridBag(reStkfee, row, column, height);
                    //Create a vertical space.
                    row += LABEL_HEIGHT;
                    //Create the Total Inventory Value label and textField.
                    inventoryValueLabel = new JLabel("Total Inventory Value:");
                    inventoryValueLabel.setLabelFor(inventoryValueLabel);
                    row += LABEL_HEIGHT;
                    addToGridBag(inventoryValue, row, column, height);
          }//End the method for building the labels
                    //Build the methods for the TextFields.
                    private void buildTextFields()
                         {//Defining the variables
                         int row = 0;
                         int column = 0;
                         int width = 0;
                         int height = 0;
                         column = TEXT_COLUMN;
                         width = TEXT_WIDTH;
                         height = TEXT_HEIGHT;
                         constraints.fill = GridBagConstraints.BOTH;
                         constraints.weightx = 1;                    
                         TextFieldHandler handler = new TextFieldHandler();
                         productNameText = new JTextField("Product Name");
                         productNameText.setEditable(false);
                         row = TEXT_START_ROW;
                         addToGridBag(productNameText, row, column, height);
                    itemNumberText = new JTextField("Product Id");
                    itemNumberText.setEditable(false);
                    row = TEXT_START_ROW;
                    addToGridBag(itemNumberText, row, column, height);
                    titleText = new JTextField("Title");
                    titleText.addActionListener(handler);
                    titleText.setEditable(false);
                    row += TEXT_HEIGHT;
                    addToGridBag(titleText, row, column, height);
                    unitPriceText = new JTextField("Unit Price");
                    unitPriceText.addActionListener(handler);
                    unitPrice.setEditable(false);
                    row += TEXT_START_ROW;
                    addToGridBag(unitPriceText, row, column, height);
                    unitStockText = new JTextField("Units In Stock");
                    unitStockText.addActionListener(handler);
                    unitStockText.setEditable(false);
                    row += TEXT_START_ROW;
                    addToGridBag(unitStockText, row, column, height);
                    productValueText =new TextField("Product Value");
                    productValueText.addActionListener(handler);
                    productValueText.setEditable(false);
                    row += TEXT_START_ROW;
                    addToGridBag(productValueText, row, cloumn, height);
                         reStkfeeText =new JTextField("Restock Fee");
                    reStkfeeText.addActionListener(handler);
                    reStkfeeText.setEditable(false);
                    row += TEXT_START_ROW;
                    addToGridBag(reStkfeeText, row, cloumn, height);
                    //Creat vertical space.
                    row += TEXT_HEIGHT;
                    addToGridBag(new JLabel(""),row, column, height);
                    inventoryValueText =new TextField("Inventory Value");
                    inventoryValueText.addActionListener(handler);
                    inventoryValueText.setEditable(false);
                    row += TEXT_START_ROW;
                    addToGridBag(inventoryValueText, row, cloumn, height);
                    }//End the methods for building the TextFields.
                         //Add the main buttons to the frame.
               private void buildMainButtons()
                         {//Declaraing the variables.
                         int row = 0;
                         int column = 0;
                         int width = 0;
                         int height = 0;                         
                         row =BUTTON_START_ROW;
                         column = BUTTON_COLUMN;
                         width = BUTTON_WIDTH;
                         height = BUTTON_HEIGHT;
                         constraints.weightx = 1;
                         constraints.weighty = 0;                         
                         //The constraints.fill = GridBagConstraints.HORIZONTAL;
                         ButtonHandler handler = new ButtonHandler();
                         //Creat a veritical space.
                         addToGridbag(new JLabel(""), row, column, width, height);
                         firstButton = new JButton("First");
                         firstButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(firstButton, row, column, width, height);                         
                         previousButton = new JButton("Previous");
                         previousButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(previousButton, row, column, width, height);     
                         nextButton = new JButton("Next");
                         nextButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(nextButton, row, column, width, height);     
                         lastButton = new JButton("Last");
                         lastButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(lastButton, row, column, width, height);     
                         addButton = new JButton("Add");
                         addButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(addButton, row, column, width, height);                         
                         deleteButton = new JButton("Delete");
                         deleteButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(deleteButton, row, column, width, height);
                         saveButton = new JButton("Save");
                         saveButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(saveButton, row, column, width, height);     
                         searchButton = new JButton("Search");
                         searchButton.addActionListener(handler);
                         row += LABEL_HEIGHT;
                         addToGridBage(searchButton, row, column, width, height);                         
                    //End methods for building the main butt0ns.
     private void addToGridBag(Component component, int row, int column, int width, int height)
     {               //Set up the upper-left corner of the component gridx and gridy.
                         constraints.gridx = column;
                         constraints.gridy = row;
                         //Set the numbers of rows and columns the components occupies.
                         constraints.gridwidth = width;
                         constraints.gridheight = height;
                         //set the constraints
                         Layout.setConstraints(component, constraints);
                         //Add the component to the JFrame.
                         add(component);                    
                    }//End method for addGridBag.                     
          //End class JLabelTextFieldViewGui.
class Invetnory4
          public static void main(String args[])
                    {   //An array variable.
                         Product[]inventory;
                         inventory = new Product[10];
                         //Create and pass control to the GUI
                         FinalInventory gui = new FinaInventoryGUI(inventory);           
                    }//End method main
               }//End class Inventory4     
/*Inventory.java*/
/*Means for importing program packages*/
/*Beginning of the class type Inventory*/

Answer 1

Hi Bryan,
I took your advice and decided to take a different approach to the problem I am having, I decided to stay somewhat with the basics with little knowledge I have about coding. I am new to this and I am trying to learn through the fire but it's getting hot so if you don't mind, can you tell me what I need to do to fix the error messages I am getting.
1. "else" without "if',
2. can't load my icon-a JPG
3. exception in thread amin
process complete.
4.Text area for displaying an iteration of the input
the code is not as long as the other one! any help will be appreciated. Also I am attaching the code to the GUI that does work but I can not seem to get the actionListener aspect to work. Thanks again.
  //this one works and it serves as a model for what I am //trying to do in the fields. as well as designate a text area                                                              //where a each entry per iteration of input is displayed
* @(#)InventoryGUIFrame.java
* @author
* @version 1.00 2008/2/2
package components;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.text.*;
import java.awt.*;
* FormattedTextFieldDemo.java requires no other files.
* It implements a mortgage calculator that uses four
* JFormattedTextFields.
public class InventoryGUIFrame extends JFrame
          String productName;
          String itemNumber;
          double unitPrice;
          double unitStock;
          //Labels to identify the fields
          private JLabel productNamelabel;
          private JLabel itemNumberlabel;
          private JLabel unitPricelabel;
          private JLabel unitStocklabel;
          //Fields for data Entry     
          private JTextField productNameField;
          private JTextField itemNumberField;
          private JTextField unitPriceField;
          private     JTextField unitStockField;
               //Adding the JButtons
          JButton firstButton;
          JButton nextButton;
          JButton previousButton;
          JButton searchButton;
          JButton addButton;
          JButton deleteButton;
          JButton saveButton;
          //Constructor          
public InventoryGUIFrame()
         super("Welcome To The Inventory Program");
         setLayout(new FlowLayout());
         setDefaultCloseOperation(EXIT_ON_CLOSE);
         JFrame Frame = new JFrame();
         Frame JPanel = new Frame();
         JPanel  JLabel= new JPanel();
         TextArea area = new TextArea();
     productNamelabel = new JLabel("PRODUCT  NAME");
     productNamelabel.setToolTipText("Name of the item you wish to calculate");
    add(productNamelabel);
     productNameField= new JTextField(8);
     add(productNameField);
     itemNumberlabel = new JLabel("PRODUCT  NUMBER");
     itemNumberlabel.setToolTipText("Number identifying the product");
     add(itemNumberlabel);
     itemNumberField =new JTextField(5);
     add(itemNumberField);
     unitPricelabel=new JLabel("PRODUCT  PRICE");
     unitPricelabel.setToolTipText("What is the cost of the product?:");
     add(unitPricelabel);
     unitPriceField = new JTextField(5);
     add(unitPriceField);          
     unitStocklabel = new JLabel("UNITS  IN  STOCK");
     unitStocklabel.setToolTipText("How many products in inventory?:");
     add(unitStocklabel);
     unitStockField = new JTextField(5);
     add(unitStockField);
     firstButton =new JButton("First");
     add(firstButton);
     nextButton = new JButton("Next");
     add(nextButton);
     previousButton = new JButton("Previous");
     add(previousButton);
     addButton = new JButton("Add");
     add(addButton);
     deleteButton = new JButton("Delete");
     add(deleteButton);
     saveButton = new JButton("Save");
     add(saveButton);
     searchButton = new JButton("Search");
     add(searchButton);
     public static void main(String args[])
     InventoryGUIFrame frame  = new InventoryGUIFrame();
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     frame.setSize(740,150);
     frame.setVisible(true);
  class InventorySystem6
{     /*Declaration of products[] and the maximum storing capacity*/
   private Product products[] = new Product[MAX_NUM_OF_PRODUCTS];
   /*Prompts user to make another selection or exit program*/
   private static final String STOP_COMMAND = "stop";
        /*parameters defining maximun numbers of products available for storing in */
private static final int MAX_NUM_OF_PRODUCTS = 100;
/*Declaration of the variables */
String name;
String item;
double stock;
double price;
double reStkfee=1.05;
double pValue;
double iValue;
public InventorySystem6()
     /*Empty Constructor*/
}/*Beginning of product input by the user*/
public void inputProductInfo()
{     /*Declaration of currency format*/     
               DecimalFormat Currency = new DecimalFormat();
               Scanner input = new Scanner(System.in);
               /*Beginning of the Loop*/
               JOptionPane.showMessageDialog(null,"Welcome to the Inventory Program\n","Welcome to the Inventory Program\n",
               JOptionPane.PLAIN_MESSAGE);               
               for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
               name = JOptionPane.showInputDialog( "What is the Product Name? ");
               if(name.equalsIgnoreCase("stop"))
               break;
     String item = JOptionPane.showInputDialog("Enter the products ID");
     String priceStr =JOptionPane.showInputDialog("Enter the products price");
     double price=Double.parseDouble(priceStr);
               String stockStr=JOptionPane.showInputDialog("Enter the units in stock " );
               double stock = Double.parseDouble(stockStr);          
               double sum=price*stock;
          JOptionPane.showMessageDialog(null,"The product value is:"+sum, "pValue",
          JOptionPane.PLAIN_MESSAGE);
               /* JOptionPane.showMessageDialog(null,"The Product Name is:"+productName, "productName"
               ,"\n","The Product Id is "+productId,"Product ID"
                    ,"\n","The Unit Price is"+unitPrice,"Unit Price"
                         ,"\n","The Units In Stock is"+unitStock,"UnitStock"
                              ,"\n","The Product Value is"+productValue, "productValue"
                                   ,"\n","The Restocking Fee is "+reStockfee,"Restock Fee"
                                        ,"\n","The Inventory Value is"+inventoryValue,"Inventory Value"
                                             ,"\n","The Inventory Restock Fee is"+reStockfee,"Restock Fee"
                                                  ,"\n",JOptionPane.PLAIN_MESSAGE);*/
          //Product products[] = new Product[100];
               products[i] = new Product();
               products[i].setitem(item);
               products[i].setname(name);
               products[i].setprice(price);
               products[i].setstock(stock);
               products[i].setpValue(sum);
               products[i].setreStkfee(reStkfee);
               iValue += sum + products[i].getreStkfee();
public void displayProductInfo()
{ /*Initialization of the variable total inventory value*/
NumberFormat moneyFormat = NumberFormat.getCurrencyInstance();
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
          Product product = products[i];
          if(product==null)
          System.out.println(products[i]);
               break;
     System.out.printf("product name: %s\n ", product.getname());
     System.out.printf("product ID: %s \n", product.getitem());
     System.out.printf("Unit Price: %s \n", moneyFormat.format(product.getprice()));
     System.out.printf("units in Stock: %s \n", product.getstock());
     System.out.printf("Total product Value: %s \n", moneyFormat.format(product.getpValue()));
     System.out.printf("Restocking fee: %s \n", moneyFormat.format(product.getreStkfee()));
     System.out.printf("Inventory Value: %s \n", iValue);
}/*Beginning of method main*/
public static void main(String[] args)
{/*Message*/
     /*Means for retrieving and storing new data input into inventory program*/
InventorySystem6 JTableImageCreator = new InventorySystem6();
JTableImageCreator.displayProductInfo();
JTableImageCreator.inputProductInfo();
class Product
/*Declaration of and default value of specified variables*/
//private Product products[] = new Product[100];
private String item;
String name;
private double stock;
private double price;
private double pValue;
private double reStkfee;
//private String productNames[] = new String[1000]; //declaration of array "productNames" to store Product Names
private double iValue;
/*method defining the get and set values of each individual variable*/
public String getname()
{/*Mean for storing and retrieving input of name*/
return name;
}/*Means for setting the product name*/
public void setname(String name)
{/*null pointer argument exception defining metod for obtainng product name*/
this.name = name;
}/*Means for getting the units identifcation number inputted by the user*/
public String getitem()
{/*Means for returning the user input*/
return item;
}/*Means for setting the units identifcation */
public void setitem(String item)
{/*null pointer argument exception for setting the product identification number*/
this.item = item;
}/*Means for getting the units value input*/
public double getstock()
{/*Means for returning the variable of the units*/
return stock;
}/*Means for setting the units value*/
public void setstock(double stock)
this.stock = stock;
public double getprice()
{/*Means for returning the dollar value of the price of the unit(s)*/
return price;
}/*Means for setting and requesting user to input + dollar amt*/
public void setprice(double price)
this.price = price ;
}/*Means for setting the value of the total product value*/
public void setpValue(double pValue)
this.pValue = pValue+(price*stock);
}/*Means for getting the value of the product*/
public double getpValue()
{/*Means for returning the value*/
     return pValue;
}/*Means for getting the TtlInventoryValue of products entered*/
public void setiValue(double iValue)
{/*Condition Statement*/
          this.iValue=iValue;
public double getiValue()
          return iValue;
public void setreStkfee(double reStkfee)
     this.reStkfee=stock*price*1.05;
/*Means for setting restockin fee of the total products*/
public double getreStkfee()
{/*Means for calculating the restocking fee of each products units nStock*/
               return reStkfee;
}/*Method for string the elements in [i] for display*/
public String toString()
     {/*Means for returning defined string of elements in [i]*/
          return "Product{" +
"item="+ item +
", name="+ name +
", stock="+ stock +
", price="+price +
", pValue="+pValue +
", reStkfee="+ reStkfee +
", iValue="+iValue+     
}/*End set and get method*/
}/*End of class Product*/
/*Delcaration of the class type sortproductNames*/                    
class sortproductNames extends Product
{/*Declaration of the variable productName*/
protected String name;
/*Means for setting and getting values of the variable productName*/
public void setname(String name)
this.name = name;
public String getname()
return name;
public int compareTo(Object object)
{ // for sorting by product name
Product anotherProduct = (Product) object;
return name.compareTo( anotherProduct.name);
               g.drawImage(image,0,0,200,50,0,0,image.getWidth(null), image.getHeight(null),null);
          else;
               g.drawString("O2K", 10,10);
* @(#)InventoryGUIFrame.java
* @author
* @version 1.00 2008/2/2
package components;
import java.io.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.imagio.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.text.*;
import java.awt.*;
* FormattedTextFieldDemo.java requires no other files.
* It implements a mortgage calculator that uses four
* JFormattedTextFields.
public class InventoryGUIPanelFrameTextArea extends JFrame
String productName;
String itemNumber;
double unitPrice;
double unitStock;
//Labels to identify the fields
private JLabel productNamelabel;
private JLabel itemNumberlabel;
private JLabel unitPricelabel;
private JLabel unitStocklabel;
//Fields for data Entry     
private JTextField productNameField;
private JTextField itemNumberField;
private JTextField unitPriceField;
private     JTextField unitStockField;
private Product[] products;
private int unitStock;
private int currentIndex=0;
//Adding the JButtons
JButton firstButton;
JButton nextButton;
JButton previousButton;
JButton searchButton;
JButton addButton;
JButton deleteButton;
JButton saveButton;
//Constructor          
public InventoryGUIPanelFrameTextArea()
super("Welcome To The Inventory Program");
this.products = products;
this.numOfProducts = products;
JFrame JPanel = new JFrame();
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLayout(new GridLayout());
showLogo();
showLabels();
showInputFields();
showButtons();
public void showLogo()
O2K myLogo = new O2K();
this.add(myLogo);
public void showLabels()
JPanel panel = new JPanel();
panel.add(new JLabel("PRODUCT NAME"));
panel.add(new JLabel("ITEM NUMBER"));
panel.add(new JLabel("UNIT PRICE"));
panel.add(new JLabel("UNITS IN STOCK"));
this.add(panel);
public void showInputFields()
itemNumber =new JTextField(5);
itemNumber.setEditable(false);
productName= new JTextField(10);
productName.setEditable(false);
unitPrice= new JTextField(5);
unitPrice.setEditable(false);
unitStock = new JTextField(10);
unitStock.setEditable(false);
panel.setEditable(false);
panel.add(itemNumber);
panel.add(productName);
panel.add(unitPrice);
panel.add(unitStock);
this.add(panel);
public void showButtons()
JPanel panel = new JPanel();
first = new JButton("First");
next = new JButton("Next");
previous = new JButton("Previous");
add = new JButton ("Add");
delete = new JButton ("Delete");
search = new JButton ("Search");
save = new JButton ("Save");
panel.add(first);
panel.add(next);
panel.add(previous);
panel.add(add);
panel.add(delete);
panel.add(search);
panel.add(save);
panel.add(this);
ButtonActionHandler handler = new ButtonActionHandler();
first.addActionListener(handler);
next.addActionListener(handler);
previous.addActionListener(handler);
add.addActionListener(handler);
delete.addActionListener(handler);
search.addActionListener(handler);
save.addActinListener(handler);
this.add(panel);
setFields(0);
protected void paintComponent (Graphics g)
public void setFields(int i)
setItemNumber(i);
setProductName(i);
setUnitPrice(i);
setUnitStock(i);
public void setItemNumber( int i)
itemNumber.setText(products[i].getItemNumber());
public void setProductName(int i)
productname.setText(products[i].getProductName());
public void setUnitPrice( int i)
unitPrice.setText(String.valueOf(products[i].getunitPrice()));
public void setUnitStock(int i)
unitStock.setText(String.valueOf(products[i].getunitStock()));
private class ButtonActionHandler implements ActionListener
public void actionPerformed(ActionEvent event)
if(event.getSource()==first)
currentIndex=0;
setFields(currentIndex);
else if(event.getSource()==next)
currentIndex++;
if(currentIndex==unitStock);
currentIndex--;
setFields(currentIndex);
else if (event.getSource()==previous)
currentIndex--;
if(curentIndex < 0)
currentIndex=0;
setFields(currentIndex);
else if(event.getSource()==last)
currentIndex = unitStock -1;
setFields(currentIndex);
else if(event.getSource()==add)
currentIndex = productName ++;
setFields(currentIndex);
else if(event.getSource()==delete)
currentIndex= productName -1;
setFields(currentIndex);
else if (event.getSource()==search)
currentIndex=productName ++;
setFields(currentIndex);
else if (event.getSource()==save)
currentIndex=productName ++;
setFields(currentIndex);
public static void main(String args[])
JFrame mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setSize(400,300);
mainFrame.setVisible(true);
class InventorySystem6
{     /*Declaration of products[] and the maximum storing capacity*/
private Product products[] = new Product[MAX_NUM_OF_PRODUCTS];
/*Prompts user to make another selection or exit program*/
private static final String STOP_COMMAND = "stop";
     /*parameters defining maximun numbers of products available for storing in [i]*/
private static final int MAX_NUM_OF_PRODUCTS = 100;
/*Declaration of the variables */
String name;
String item;
double stock;
double price;
double reStkfee=1.05;
double pValue;
double iValue;
public InventorySystem6()
     /*Empty Constructor*/
}/*Beginning of product input by the user*/
public void inputProductInfo()
{     /*Declaration of currency format*/     
               DecimalFormat Currency = new DecimalFormat();
               Scanner input = new Scanner(System.in);
               /*Beginning of the Loop*/
               JOptionPane.showMessageDialog(null,"Welcome to the Inventory Program\n","Welcome to the Inventory Program\n",
               JOptionPane.PLAIN_MESSAGE);               
               for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
               name = JOptionPane.showInputDialog( "What is the Product Name? ");
               if(name.equalsIgnoreCase("stop"))
               break;
     String item = JOptionPane.showInputDialog("Enter the products ID");
     String priceStr =JOptionPane.showInputDialog("Enter the products price");
     double price=Double.parseDouble(priceStr);
               String stockStr=JOptionPane.showInputDialog("Enter the units in stock " );
               double stock = Double.parseDouble(stockStr);          
               double sum=price*stock;
          JOptionPane.showMessageDialog(null,"The product value is:"+sum, "pValue",
          JOptionPane.PLAIN_MESSAGE);
               /* JOptionPane.showMessageDialog(null,"The Product Name is:"+productName, "productName"
               ,"\n","The Product Id is "+productId,"Product ID"
                    ,"\n","The Unit Price is"+unitPrice,"Unit Price"
                         ,"\n","The Units In Stock is"+unitStock,"UnitStock"
                              ,"\n","The Product Value is"+productValue, "productValue"
                                   ,"\n","The Restocking Fee is "+reStockfee,"Restock Fee"
                                        ,"\n","The Inventory Value is"+inventoryValue,"Inventory Value"
                                             ,"\n","The Inventory Restock Fee is"+reStockfee,"Restock Fee"
                                                  ,"\n",JOptionPane.PLAIN_MESSAGE);*/
          //Product products[] = new Product[100];
               products[i] = new Product();
               products[i].setItemNumber(itemNumber);
               products[i].setPrdocutName(productName);
               products[i].setUnitPrice(unitPrice);
               products[i].setUnitStock(unitStock);
               products[i].setProductValue(sum);
               products[i].setReStkfee(reStkfee);
               inventoryValue += sum + products[i].getreStkfee();
public void displayProductInfo()
{ /*Initialization of the variable total inventory value*/
NumberFormat moneyFormat = NumberFormat.getCurrencyInstance();
for(int i = 0; i<MAX_NUM_OF_PRODUCTS ; i++)
          Product product = products[i];
          if(product==null)
          System.out.println(products[i]);
               break;
     System.out.printf("product name: %s\n ", product.getproductName());
     System.out.printf("product ID: %s \n", product.getitemNumber());
     System.out.printf("Unit Price: %s \n", moneyFormat.format(product.getunitPrice()));
     System.out.printf("units in Stock: %s \n", product.getunitStock());
     System.out.printf("Total product Value: %s \n", moneyFormat.format(product.getproductValue()));
     System.out.printf("Restocking fee: %s \n", moneyFormat.format(product.getreStkfee()));
     System.out.printf("Inventory Value: %s \n", inventoryValue);
}/*Beginning of method main*/
public static void main(String[] args)
{/*Message*/
     /*Means for retrieving and storing new data input into inventory program*/
InventorySystem6 JTableImageCreator = new InventorySystem6();
JTableImageCreator.displayProductInfo();
JTableImageCreator.inputProductInfo();
class Product
/*Declaration of and default value of specified variables*/
//private Product products[] = new Product[100];
protected String itemNumber;
protected String prodcutname;
protected double unitStock;
protected double unitPrice;
protected double productValue;
protected double reStkfee;
protected double inventoryValue;
//private String productNames[] = new String[1000]; //declaration of array "productNames" to store Product Names
/*method defining the get and set values of each individual variable*/
public String getproductName()
{/*Mean for storing and retrieving input of name*/
return productName;
}/*Means for setting the product name*/
public void setProductName(String productName)
{/*null pointer argument exception defining metod for obtainng product name*/
this.productName = ProductName;
}/*Means for getting the units identifcation number inputted by the user*/
public String getitemNumber()
{/*Means for returning the user input*/
return itemNumber;
}/*Means for setting the units identifcation */
public void setItemNumber(String itemNumber)
{/*null pointer argument exception for setting the product identification number*/
this.itemNumber = itemNumber;
}/*Means for getting the units value input*/
public double getunitStock()
{/*Means for returning the variable of the units*/
return unitStock;
}/*Means for setting the units value*/
public void setUnitStock(double unitStock)
this.unitStock = unitStock;
public double getunitPrice()
{/*Means for returning the dollar value of the price of the unit(s)*/
return unitPrice;
}/*Means for setting and requesting user to input + dollar amt*/
public void setUnitPrice(double unitPrice)
this.unitPrice = unitPrice ;
}/*Means for setting the value of the total product value*/
public void setProductValue(double prodcutValue)
this.prodcutValue = unitPrice*unitStock;
}/*Means for getting the value of the product*/
public double getproductValue()
{/*Means for returning the value*/
     return productValue;
}/*Means for getting the TtlInventoryValue of products entered*/
public void setInvetnoryValue(double invetnoryValue)
{/*Condition Statement*/
          this.inventoryValue=inventoryValue;
public double getinvetotyValue()
          return productValue;
public void setReStkfee(double reStkfee)
     this.reStkfee=stock*price*1.05;
/*Means for setting restockin fee of the total products*/
public double getreStkfee()
{/*Means for calculating the restocking fee of each products units nStock*/
               return reStkfee;
}/*Method for string the elements in [i] for display*/
public String toString()
     {/*Means for returning defined string of elements in [i]*/
          return "Product{" +
"itemNumber="+ itemNumber +
", productName="+ productName +
", unitStock="+ unitStock +
", unitPrice="+unitPrice +
", productValue="+prodcutValue +
", reStkfee="+ reStkfee +
", inventoryValue="+inventoryValue+     
}/*End set and get method*/
}/*End of class Product*/
/*Delcaration of the class type sortproductNames*/                    
class sortproductNames extends Product
{/*Declaration of the variable productName*/
protected String name;
/*Means for setting and getting values of the variable productName*/
public void setProdcutName(String productName)
this.productName = productName;
public String getproductName()
return productName;
public int compareTo(Object object)
{ // for sorting by product name
Product anotherProduct = (Product) object;
return productName.compareTo( anotherProduct.productName);
     class myGraphics extends component          
          private BufferedImage image;
          private boolean imageFound = true;
          public myGraphics()
               super();
               try
                    image=ImageIO.read(new File("Logo.jpg"));
               catch(IOException x)
                    x.printStackTrace();
                    imageFound = false;
          public void paint(Graphics g)
               g.drawImage(image,0,0,200,50,0,0,image.getWidth(null), image.getHeight(null),null);
          else;
               g.drawString("O2K", 10,10);