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Sep 6th, 2007

Inventory program part 5 help

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I need to
Modify the Inventory Program by adding a button to the GUI that allows the user to move to the first item, the previous item, the next item, and the last item in the inventory. If the first item is displayed and the user clicks on the Previous button, the last item should display. If the last item is displayed and the user clicks on the Next button, the first item
should display.
Add a company logo to the GUI using Java graphics classes.

This is what I have so far.

Java Syntax (Toggle Plain Text)
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;
 
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
 
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
 
    public static void main(String[] args) 
    {
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
 
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
 
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
 
        //Sort elements in array in alphabetical order by product name
//        product[0].sortItems(product);
    final JButton firstBtn = new JButton("First"); // first button
final JButton prevBtn = new JButton("Previous"); // previous button
final JButton nextBtn = new JButton("Next"); // next button
final JButton lastBtn = new JButton("Last"); // last button
final JLabel label; // logo
final JTextArea textArea; // text area for product list
final JPanel buttonJPanel; // panel to hold buttons
//JLabel constructor for logo
Icon logo = new ImageIcon("C:/logo.jpg"); // load logo
label = new JLabel(logo); // create logo label
label.setToolTipText("Company Logo"); // create tooltip
 
 
    }
 
 
 
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
        combo.addActionListener(this);
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c);
        cp.add(b = new JButton("First"),c); // set up panel
        cp.add(b = new JButton("Prev"),c);
        cp.add(b = new JButton("Next"),c);
        cp.add(b = new JButton("Last"),c);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()
 
        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
 
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
 
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
 
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }
 
    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
 
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}
 
public class InventoryI {
 
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
 
        String itemcode; 
 
 
    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name
 
        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name
 
        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
 
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
 
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
 
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
 
            double tot = 0.0;
 
        for(int i = 0; i < inv.length; i++)   
 
            tot += inv[i].getInventoryIValue();
 
        return tot;
 
    }
 
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
 
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
 
            for(int k = 0; k < inventory.length - 1; k++)
            {
 
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
 
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
 
                }//end if
 
            }//end for loop
 
        }//end for loop
 
 
        return inventory;
    }
 
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
 
 
        sb.append("CD Title:      \t").append(name).append("\n");
                                    sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
    }
 
 
}
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
 
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
 
    public static void main(String[] args) 
    {
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
  
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
     
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
    
        //Sort elements in array in alphabetical order by product name
//        product[0].sortItems(product);
    final JButton firstBtn = new JButton("First"); // first button
final JButton prevBtn = new JButton("Previous"); // previous button
final JButton nextBtn = new JButton("Next"); // next button
final JButton lastBtn = new JButton("Last"); // last button
final JLabel label; // logo
final JTextArea textArea; // text area for product list
final JPanel buttonJPanel; // panel to hold buttons
//JLabel constructor for logo
Icon logo = new ImageIcon("C:/logo.jpg"); // load logo
label = new JLabel(logo); // create logo label
label.setToolTipText("Company Logo"); // create tooltip


    }
    
    
        
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
        combo.addActionListener(this);
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c);
        cp.add(b = new JButton("First"),c); // set up panel
        cp.add(b = new JButton("Prev"),c);
        cp.add(b = new JButton("Next"),c);
        cp.add(b = new JButton("Last"),c);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()

        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
        
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
      
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
  
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }

    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
 
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}

public class InventoryI {
        
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
        
        String itemcode; 
        

    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name

        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name

        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
       
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
         
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
        
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
    
            double tot = 0.0;
        
        for(int i = 0; i < inv.length; i++)   
                
            tot += inv[i].getInventoryIValue();
        
        return tot;
        
    }
    
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
         
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
         
            for(int k = 0; k < inventory.length - 1; k++)
            {
         
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
         
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
         
                }//end if
         
            }//end for loop
         
        }//end for loop

        
        return inventory;
    }
    
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
        
                
        sb.append("CD Title:      \t").append(name).append("\n");
                                    sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
    }
    
    
}

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dkdeleon68

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Sep 6th, 2007

Re: Inventory program part 5 help

I forgot to say that my code compiles and runs showing the buttons but the buttons do nothing.

dkdeleon68

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Sep 6th, 2007

Re: Inventory program part 5 help

You actually define the buttons twice, once in the initCD() method and then again in showGUI(), but you do not add any ActionListeners (or Actions, both are valid) to be executed when the buttons are pressed.
How To Use Actions

Last edited by Ezzaral; Sep 6th, 2007 at 5:07 pm. Reason: added link

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Sep 6th, 2007

Re: Inventory program part 5 help

here is the code with changes,

Java Syntax (Toggle Plain Text)
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;
 
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton b;
 
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
 
    public static void main(String[] args) 
    {
 
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
 
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
 
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
 
        //Sort elements in array in alphabetical order by product name
    // product[0].sortItems(product);
       b = new JButton("First"); // first button
       b.addActionListener(this);
       b = new JButton("Previous"); // previous button
       b.addActionListener(this);
       b = new JButton("Next"); // next button
       b.addActionListener(this);
       b = new JButton("Last"); // last button
 
    }
 
      // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {
 
      // handle button event
      public void actionPerformed( ActionEvent event )
 
      {
 
 
//           System.out.println(event.getActionCommand());
 
 
         // See which button was pressed
         if (event.getActionCommand()== "Next"){
 
 
        }
 
       else if (event.getActionCommand()== "Prev"){
 
 
        }
         else if (event.getActionCommand()== "Last"){
 
 
         }
           else if (event.getActionCommand()== "First"){
 
 
           }
 
 
       } // end method actionPerformed
 
   } // end private inner class ButtonHandler
 
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
        combo.addActionListener(this);
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c); 
        cp.add(b = new JButton("First"),c);             
        cp.add(b = new JButton("Prev"),c);             
        cp.add(b = new JButton("Next"),c);
        cp.add(b = new JButton("Last"),c);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()
 
        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
 
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
 
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
    String command;
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }
 
    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
    public String getActionnCommand() {return command; }
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}
 
public class InventoryI {
 
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
 
        String itemcode; 
 
        String command; 
 
 
    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name
 
        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name
 
        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
 
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
 
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
 
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
 
            double tot = 0.0;
 
        for(int i = 0; i < inv.length; i++)   
 
            tot += inv[i].getInventoryIValue();
 
        return tot;
 
    }
 
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
 
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
 
            for(int k = 0; k < inventory.length - 1; k++)
            {
 
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
 
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
 
                }//end if
 
            }//end for loop
 
        }//end for loop
 
 
        return inventory;
 
    }
 
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
 
 
        sb.append("CD Title:      \t").append(name).append("\n");
                sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
 
 
    }
 
 
}
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton b;
    
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
  
    public static void main(String[] args) 
    {
        
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
  
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
     
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
    
        //Sort elements in array in alphabetical order by product name
    // product[0].sortItems(product);
       b = new JButton("First"); // first button
       b.addActionListener(this);
       b = new JButton("Previous"); // previous button
       b.addActionListener(this);
       b = new JButton("Next"); // next button
       b.addActionListener(this);
       b = new JButton("Last"); // last button
       
    }
    
      // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {

      // handle button event
      public void actionPerformed( ActionEvent event )

      {
 

//           System.out.println(event.getActionCommand());
 

         // See which button was pressed
         if (event.getActionCommand()== "Next"){

 
        }

       else if (event.getActionCommand()== "Prev"){

       
        }
         else if (event.getActionCommand()== "Last"){

         
         }
           else if (event.getActionCommand()== "First"){
             

           }
 

       } // end method actionPerformed

   } // end private inner class ButtonHandler
        
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
        combo.addActionListener(this);
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c); 
        cp.add(b = new JButton("First"),c);             
        cp.add(b = new JButton("Prev"),c);             
        cp.add(b = new JButton("Next"),c);
        cp.add(b = new JButton("Last"),c);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()

        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
        
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
      
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
    String command;
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }

    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
    public String getActionnCommand() {return command; }
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}

public class InventoryI {
        
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
        
        String itemcode; 
        
        String command; 
        

    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name

        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name

        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
       
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
         
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
        
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
    
            double tot = 0.0;
        
        for(int i = 0; i < inv.length; i++)   
                
            tot += inv[i].getInventoryIValue();
        
        return tot;
        
    }
    
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
         
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
         
            for(int k = 0; k < inventory.length - 1; k++)
            {
         
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
         
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
         
                }//end if
         
            }//end for loop
         
        }//end for loop

        
        return inventory;
                
    }
    
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
        
                
        sb.append("CD Title:      \t").append(name).append("\n");
                sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
                
                
    }
    
    
}

dkdeleon68

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Sep 6th, 2007

Re: Inventory program part 5 help

Java Syntax (Toggle Plain Text)
       b = new JButton("First"); // first button
       b.addActionListener(this);
       b = new JButton("Previous"); // previous button
       b.addActionListener(this);
       b = new JButton("Next"); // next button
       b.addActionListener(this);
       b = new JButton("First"); // first button
       b.addActionListener(this);
       b = new JButton("Previous"); // previous button
       b.addActionListener(this);
       b = new JButton("Next"); // next button
       b.addActionListener(this);

Still does not do anything. You are assigning "b" instances of new buttons (replacing the previous each time I might add), but the buttons that are getting added to the panel are being created in showGUI(). You need to add the action listener to the button that is being added to the panel. Also, your current action listener implementation is picking up the combo box index. Each button will need to have its own action to perform.

Last edited by Ezzaral; Sep 6th, 2007 at 6:18 pm.

Ezzaral

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since May 2007

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Sep 6th, 2007

Re: Inventory program part 5 help

Ok, I changes it so the action listener is added to the buttons that are being added to the panel annd still nothing. by the way, i want to thank you for all your help and advice, they are much appreciated.

Java Syntax (Toggle Plain Text)
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;
 
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton b;
 
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
     // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {
 
      // handle button event
      public void actionPerformed( ActionEvent event )
 
      {
 
 
          System.out.println(event.getActionCommand());
 
 
         // See which button was pressed
         if (event.getActionCommand()== "Next"){
 
 
        }
 
       else if (event.getActionCommand()== "Prev"){
 
 
        }
         else if (event.getActionCommand()== "Last"){
 
 
         }
           else if (event.getActionCommand()== "First"){
 
 
           }
 
 
       } // end method actionPerformed
 
   } // end private inner class ButtonHandler
    public static void main(String[] args) 
    {
 
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
 
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
 
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
 
        //Sort elements in array in alphabetical order by product name
    // product[0].sortItems(product);
       b = new JButton("First"); // first button      
       b = new JButton("Previous"); // previous button
       b = new JButton("Next"); // next button
       b = new JButton("Last"); // last button
 
 
    }
 
 
 
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
 
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c);
        b.addActionListener(this);
        cp.add(b = new JButton("First"),c); 
        b.addActionListener(this);
        cp.add(b = new JButton("Prev"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Next"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Last"),c);
        b.addActionListener(this);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()
 
        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
 
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
 
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
    String command;
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }
 
    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
    public String getActionnCommand() {return command; }
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}
 
public class InventoryI {
 
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
 
        String itemcode; 
 
        String command; 
 
 
    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name
 
        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name
 
        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
 
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
 
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
 
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
 
            double tot = 0.0;
 
        for(int i = 0; i < inv.length; i++)   
 
            tot += inv[i].getInventoryIValue();
 
        return tot;
 
    }
 
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
 
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
 
            for(int k = 0; k < inventory.length - 1; k++)
            {
 
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
 
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
 
                }//end if
 
            }//end for loop
 
        }//end for loop
 
 
        return inventory;
 
    }
 
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
 
 
        sb.append("CD Title:      \t").append(name).append("\n");
                sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
 
 
    }
 
 
}
import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton b;
    
    public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
     // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {

      // handle button event
      public void actionPerformed( ActionEvent event )

      {
 

          System.out.println(event.getActionCommand());
 

         // See which button was pressed
         if (event.getActionCommand()== "Next"){

 
        }

       else if (event.getActionCommand()== "Prev"){

       
        }
         else if (event.getActionCommand()== "Last"){

         
         }
           else if (event.getActionCommand()== "First"){
             

           }
 

       } // end method actionPerformed

   } // end private inner class ButtonHandler
    public static void main(String[] args) 
    {
        
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
  
    /**
     * 
     */
    public void initCD() {
        //Create an array    
        product = new CD[10];
     
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
    
        //Sort elements in array in alphabetical order by product name
    // product[0].sortItems(product);
       b = new JButton("First"); // first button      
       b = new JButton("Previous"); // previous button
       b = new JButton("Next"); // next button
       b = new JButton("Last"); // last button
    
       
    }
    
     
        
    private void showGUI() {
        JLabel l;
        JButton b;
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
       
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        cp.add(b = new JButton("OK"), c);
        b.addActionListener(this);
        cp.add(b = new JButton("First"),c); 
        b.addActionListener(this);
        cp.add(b = new JButton("Prev"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Next"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Last"),c);
        b.addActionListener(this);
        b.setMnemonic('o');
        f.pack();
        f.addWindowListener(new WindowAdapter()

        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });
        f.setVisible(true);
        
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}
 
class CD {
      
    int itemNumber;
    String name;
    int units;
    double price;
    String itemCode; 
    String command;
    public CD(int n, String name, double price, int units, String itemCo) {
        itemNumber = n;
        this.name = name;
        this.price = price;
        this.units = units;
        itemCode = itemCo;
    }

    public int getNumberCode() { return itemNumber; }
    public String getName() { return name; }
    public int getUnits() { return units; }
    public double getPrice() { return price; }
    public double getSum() { return units*price; }
    public String getCode() { return itemCode; }
    public String getActionnCommand() {return command; }
    public double totalAllInventory(CD[] cds) {
        double total = 0;
        for(int j = 0; j < cds.length; j++)
            total += cds[j].getSum();
        return total;
    }
}

public class InventoryI {
        
    String productnumber;
 
    String name;
 
    int numberofunits;
 
    double priceperunit;
        
        String itemcode; 
        
        String command; 
        

    // Create a new instance of Inventory
    // main constructor for the class
    public InventoryI(String Item_Number, String Item_Name, int Items_in_Stock,
            double Item_Price, String Item_Code) {
        productnumber = Item_Number;
        name = Item_Name;
        numberofunits = Items_in_Stock;
        priceperunit = Item_Price;
                itemcode = Item_Code;
    }        
 
    public void setItemName(String Item_Name) {
    // sets the items name

        name = Item_Name;
    }
 
    public void setItemCode(String Item_Code) {
    // sets the items name

        itemcode = Item_Code;
    }
        public void setItemNumber(String Item_Number) { // Sets the Product =Number
    // for the item
 
        productnumber = Item_Number;
    }
 
    public void setItemsInStock(int Items_in_Stock) { // sets the =number of
    // units in stock
 
        numberofunits = Items_in_Stock;
    }
 
    public void setItemPrice(double Item_Price) { // sets the price of =the
    // item
        priceperunit = Item_Price;
    }
       
        public String getItemName() { // returns the Product Name of this item
        return name;
    }
 
     public String getItemCode() { // returns the Product Name of this item
        return itemcode;
        }
         
        public String getItemNumber() { // returns the Product Number of the =item
 
        return productnumber;
    }
 
    public int getItemsInStock() { // returns how many units are in stock
        return numberofunits;
    }
 
    public double getItemPrice() { // returns the price of the item
        return priceperunit;
    }
 
    public double getInventoryIValue() { // returns the total value of =the stock
    // for this item
        return priceperunit * numberofunits;
    }
        
    public static double getTotalValueOfAllInventory(InventoryI [] inv) {
    
            double tot = 0.0;
        
        for(int i = 0; i < inv.length; i++)   
                
            tot += inv[i].getInventoryIValue();
        
        return tot;
        
    }
    
    public static InventoryI[] sort(InventoryI [] inventory)
    {
        InventoryI temp[] = new InventoryI[1];
         
        //sorting the array using Bubble Sort
        for(int j = 0; j < inventory.length - 1; j++)
        {
         
            for(int k = 0; k < inventory.length - 1; k++)
            {
         
                if(inventory[k].getItemName().compareToIgnoreCase(inventory[k+1].getItemName()) > 0)
                {
         
                    temp[0] = inventory[k];
                    inventory[k] = inventory[k+1];
                    inventory[k+1] = temp[0];
         
                }//end if
         
            }//end for loop
         
        }//end for loop

        
        return inventory;
                
    }
    
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
        
                
        sb.append("CD Title:      \t").append(name).append("\n");
                sb.append("Item Code:      \t").append(itemcode).append("\n");
        sb.append("Item #:           \t").append(productnumber).append("\n");
        sb.append("Number in stock:\t").append(numberofunits).append("\n");
        sb.append("Price:          \t").append(String.format("$%.2f%n", priceperunit));
        sb.append("Inventory Value:\t").append(String.format("$%.2f%n", this.getInventoryIValue()));
 
        return sb.toString();
                
                
    }
    
    
}

dkdeleon68

Reputation Points: 10

Solved Threads: 0

Light Poster

Offline

25 posts
since Mar 2007

Permalink

Sep 7th, 2007

Re: Inventory program part 5 help

To be fair this program is in mess you should organize it little, good thing is you willing to work on it.
Bellow are some uptades for you, check the red marked parts.

PS: Can you please next time put each java file is separated code tags? Thanx

(Toggle Plain Text)

import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton jbtOk, jbtFirst, jbtPrev, jbtNext, jbtLast;
    
    public static void main(String[] args) 
    {        
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
    
    /* DOESN'T DO ANYTHING
     public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
     // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {
      // handle button event
      public void actionPerformed( ActionEvent event )
      {
          System.out.println(event.getActionCommand());
         // See which button was pressed
         if (event.getActionCommand()== "Next"){ 
        }

       else if (event.getActionCommand()== "Prev"){
       
        }
         else if (event.getActionCommand()== "Last"){
         
         }
           else if (event.getActionCommand()== "First"){             

           }
       } // end method actionPerformed

   } // end private inner class ButtonHandler*/
    
    public void actionPerformed(ActionEvent ae)
    {
    	if(ae.getSource() == jbtOk)
    	{
    		// add OK button functionality
    		System.out.println("OK pressed");
    	}
    	if(ae.getSource() == jbtFirst)
    	{
    		// add First button functionality
    		System.out.println("FIRST pressed");
    	}
    	if(ae.getSource() == jbtPrev)
    	{
    		// add Previous button functionality
    		System.out.println("PREVIOUS pressed");
    	}
    	if(ae.getSource() == jbtNext)
    	{
    		// add Next button functionality
    		System.out.println("NEXT pressed");
    	}
    	if(ae.getSource() == jbtLast)
    	{
    		// add Last button functionality
    		System.out.println("LAST pressed");
    	}
    }
    
    public void initCD() 
    {
        //Create an array    
        product = new CD[10];
     
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
    
        //Sort elements in array in alphabetical order by product name
   		// product[0].sortItems(product);
   		
       /* WHAT IS THIS FOR ? ? ?
       b = new JButton("First"); // first button      
       b = new JButton("Previous"); // previous button
       b = new JButton("Next"); // next button
       b = new JButton("Last"); // last button */      
    }
    
     
        
    private void showGUI() 
    {
        JLabel l;
        /* ONE BUTTON DOESN'T DO FOR ALL ! ! !
           ALSO THIS IS SECOND DECLARATION OF THE BUTTON, ONE ON THE START
         JButton b;*/
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
       
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        jbtOk = new JButton("OK");
        jbtOk.addActionListener(this);
        jbtFirst = new JButton("First");
        jbtFirst.addActionListener(this);
        jbtPrev = new JButton("Previous");
        jbtPrev.addActionListener(this);
        jbtNext = new JButton("Next");
        jbtNext.addActionListener(this);
        jbtLast = new JButton("Last");
        jbtLast.addActionListener(this);
        
        cp.add(jbtOk, c);
        cp.add(jbtFirst, c);
        cp.add(jbtPrev, c);
        cp.add(jbtNext, c);
        cp.add(jbtLast, c);
        /* INTERESTING SHORTCUT BUT YOU OVERWRITING YOUR BUTTON b
         	THAT IS ONE OF THE REASONS WHY NOTHING IS WORKING FOR YOU ! ! !
        cp.add(b = new JButton("OK"), c);
        b.addActionListener(this);
        cp.add(b = new JButton("First"),c); 
        b.addActionListener(this);
        cp.add(b = new JButton("Prev"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Next"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Last"),c);
        b.addActionListener(this);*/
        
        /* ASIGN MNEMONIC TO WHICH OF THE BUTTONS ? ? ?
         b.setMnemonic('o');*/
        f.pack();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        /* ABOVE IS SIMPLER SOLUTION
         f.addWindowListener(new WindowAdapter()

        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });*/
        f.setVisible(true);
        
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}

import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
class InventoryMain extends Frame implements ActionListener
{
    CD[] product;
    JTextField[] fields;
    NumberFormat nf;
    JButton jbtOk, jbtFirst, jbtPrev, jbtNext, jbtLast;
    
    public static void main(String[] args) 
    {        
        try 
        {
            UIManager.setLookAndFeel(
                    "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } 
        catch (Exception e) 
        {
            System.err.println(e.getClass().getName() + ": " + e.getMessage());
        }
        InventoryMain test = new InventoryMain();
        test.initCD();
        test.showGUI();
        test.populateFields(0);
    }
    
    /* DOESN'T DO ANYTHING
     public void actionPerformed(ActionEvent e)
    {
        int index = ((JComboBox)e.getSource()).getSelectedIndex();
        populateFields(index);
    }
     // inner class for button event handling
   private class ButtonHandler implements ActionListener
   {
      // handle button event
      public void actionPerformed( ActionEvent event )
      {
          System.out.println(event.getActionCommand());
         // See which button was pressed
         if (event.getActionCommand()== "Next"){ 
        }

       else if (event.getActionCommand()== "Prev"){
       
        }
         else if (event.getActionCommand()== "Last"){
         
         }
           else if (event.getActionCommand()== "First"){             

           }
       } // end method actionPerformed

   } // end private inner class ButtonHandler*/
    
    public void actionPerformed(ActionEvent ae)
    {
    	if(ae.getSource() == jbtOk)
    	{
    		// add OK button functionality
    		System.out.println("OK pressed");
    	}
    	if(ae.getSource() == jbtFirst)
    	{
    		// add First button functionality
    		System.out.println("FIRST pressed");
    	}
    	if(ae.getSource() == jbtPrev)
    	{
    		// add Previous button functionality
    		System.out.println("PREVIOUS pressed");
    	}
    	if(ae.getSource() == jbtNext)
    	{
    		// add Next button functionality
    		System.out.println("NEXT pressed");
    	}
    	if(ae.getSource() == jbtLast)
    	{
    		// add Last button functionality
    		System.out.println("LAST pressed");
    	}
    }
    
    public void initCD() 
    {
        //Create an array    
        product = new CD[10];
     
        //fill in the classes
        product[0] = new CD( 1, "Crowbar" , 20.00, 10, "00722");
        product[1] = new CD( 2, "Pantera" , 20.00, 10, "00263");
        product[2] = new CD( 3, "Ozzy" , 15.00, 10, "00142");
        product[3] = new CD( 4, "Soulfly" , 18.00, 10, "00553");
        product[4] = new CD( 5, "Down", 24.00, 10, "00789");
        product[5] = new CD( 6, "God Forbid" , 10.00, 10, "00712");
        product[6] = new CD( 7, "Black Label Society" , 16.00, 10, "00458" );
        product[7] = new CD( 8, "Saint Vitus" , 15.00, 10, "00889");
        product[8] = new CD( 9, "Clearlight" , 15.00, 10, "00897");
        product[9] = new CD( 10, "Testament" , 15.00, 10, "00656");        
    
        //Sort elements in array in alphabetical order by product name
   		// product[0].sortItems(product);
   		
       /* WHAT IS THIS FOR ? ? ?
       b = new JButton("First"); // first button      
       b = new JButton("Previous"); // previous button
       b = new JButton("Next"); // next button
       b = new JButton("Last"); // last button */      
    }
    
     
        
    private void showGUI() 
    {
        JLabel l;
        /* ONE BUTTON DOESN'T DO FOR ALL ! ! !
           ALSO THIS IS SECOND DECLARATION OF THE BUTTON, ONE ON THE START
         JButton b;*/
        fields = new JTextField[9];
        JComboBox combo = new JComboBox();
        for(int j = 0; j < product.length; j++)
            combo.addItem(product[j].getName());
       
        JFrame f = new JFrame("InventoryGUI");
        Container cp = f.getContentPane();
        cp.setLayout(new GridBagLayout());
        cp.setBackground(UIManager.getColor("control"));
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = GridBagConstraints.RELATIVE;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.insets = new Insets(2, 2, 2, 2);
        c.anchor = GridBagConstraints.EAST;
        cp.add(l = new JLabel("Item Number:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('a');
        cp.add(l = new JLabel("Item Name:", SwingConstants.CENTER), c);    l.setDisplayedMnemonic('b');
        cp.add(l = new JLabel("Number of Units in Stock:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('c');
        cp.add(l = new JLabel("Price per Unit: $", SwingConstants.CENTER), c);       l.setDisplayedMnemonic('d');
        cp.add(l = new JLabel("Total cost of This Item: $", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('e');
        cp.add(l = new JLabel("Total Value of All Merchandise in Inventory: $",
                               SwingConstants.CENTER), c);   l.setDisplayedMnemonic('f');
        cp.add(l = new JLabel("Item Code:", SwingConstants.CENTER), c);   l.setDisplayedMnemonic('g');
        cp.add(l = new JLabel("Product Restocking Fee: $", SwingConstants.CENTER), c);  l.setDisplayedMnemonic('h');
        cp.add(combo, c);
        c.gridx = 1;
        c.gridy = 0;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        c.anchor = GridBagConstraints.CENTER;
        cp.add(fields[0] = new JTextField(), c);
        fields[0].setFocusAccelerator('a');
        c.gridx = 1;
        c.gridy = GridBagConstraints.RELATIVE;
        cp.add(fields[1] = new JTextField(), c);         fields[1].setFocusAccelerator('b');
        cp.add(fields[2] = new JTextField(), c);         fields[2].setFocusAccelerator('c');
        cp.add(fields[3] = new JTextField(), c);         fields[3].setFocusAccelerator('d');
        cp.add(fields[4] = new JTextField(), c);         fields[4].setFocusAccelerator('e');
        cp.add(fields[5] = new JTextField(), c);         fields[5].setFocusAccelerator('f');
        cp.add(fields[6] = new JTextField(), c);         fields[6].setFocusAccelerator('g');
        cp.add(fields[7] = new JTextField(), c);         fields[7].setFocusAccelerator('h');
        cp.add(fields[8] = new JTextField(), c);         fields[8].setFocusAccelerator('i');
        c.weightx = 0.0;
        c.fill = GridBagConstraints.NONE;
        jbtOk = new JButton("OK");
        jbtOk.addActionListener(this);
        jbtFirst = new JButton("First");
        jbtFirst.addActionListener(this);
        jbtPrev = new JButton("Previous");
        jbtPrev.addActionListener(this);
        jbtNext = new JButton("Next");
        jbtNext.addActionListener(this);
        jbtLast = new JButton("Last");
        jbtLast.addActionListener(this);
        
        cp.add(jbtOk, c);
        cp.add(jbtFirst, c);
        cp.add(jbtPrev, c);
        cp.add(jbtNext, c);
        cp.add(jbtLast, c);
        /* INTERESTING SHORTCUT BUT YOU OVERWRITING YOUR BUTTON b
         	THAT IS ONE OF THE REASONS WHY NOTHING IS WORKING FOR YOU ! ! !
        cp.add(b = new JButton("OK"), c);
        b.addActionListener(this);
        cp.add(b = new JButton("First"),c); 
        b.addActionListener(this);
        cp.add(b = new JButton("Prev"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Next"),c);
        b.addActionListener(this);
        cp.add(b = new JButton("Last"),c);
        b.addActionListener(this);*/
        
        /* ASIGN MNEMONIC TO WHICH OF THE BUTTONS ? ? ?
         b.setMnemonic('o');*/
        f.pack();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        /* ABOVE IS SIMPLER SOLUTION
         f.addWindowListener(new WindowAdapter()

        {
            public void windowClosing(WindowEvent evt) 
            {
                System.exit(0);
            }
        });*/
        f.setVisible(true);
        
    }
 
    private void populateFields(int index) {
        CD cd = product[index];
        fields[0].setText(Long.toString(cd.getNumberCode()));
        fields[1].setText(cd.getName());
        fields[2].setText(Long.toString(cd.getUnits()));
        fields[3].setText(Double.toString(cd.getPrice()));
        fields[4].setText(Double.toString(cd.getSum()));
        fields[5].setText(Double.toString(cd.totalAllInventory(product)));
        fields[6].setText(cd.getCode());
        fields[7].setText(Double.toString(cd.getSum()*.05));        
    }
}

peter_budo

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since Dec 2004

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Sep 8th, 2007

Re: Inventory program part 5 help

Thank you for the help, I was up all night last night and got my buttons to print out that they were pushed but I still can not get them to function so that if the list is at the first item and I push previous button the list will show the last item and so on. I have been trying to get my code to do that for the last 32 hours, I even fell asleep with my fingers on the keyboard and woke up from dreaming about java coding. lol lol. if you can point me in the right direction it would be much appreciated, dont get me wrong I'm not asking you to do it for me I'm just asking for a little help.
once again I want to thank you for your help.

dkdeleon68

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since Mar 2007

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Sep 8th, 2007

Re: Inventory program part 5 help

It looks to me like you have written the whole thing in one go and now you're trying to back pedal.

What you should have done is to hit compile and run and check at each stage if it's correct!

iamthwee

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since Aug 2005

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Sep 10th, 2007

Re: Inventory program part 5 help

If you keep a pointer to the current recordint currentIndex; then moving within your array is trivial. You just increment the index as needed and populate the fields based on that index.

Ezzaral

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