Having some issues figuring out how to code my add, modify, search, delete, and save buttons in my program. The buttons need to also adjust the size of the array once I add or delete the an item. Any help would be great. I may be going about this the wrong way entirely but I am very new to Java. These buttons start with line 498
Thank you
package guiinventoryprogram;
/** Program: Inventory Program
* File: InventoryProgram.java
* Summary: Inventory program that gives the name of the movie, the quanity in stock, the price, and the item number
* Author:
* Date: August, 14 2011
*/
import java.awt.GridLayout; // required to create a grid layout
import java.awt.BorderLayout; // required to create a border layout
import java.awt.event.ActionEvent; // required for click events
import java.awt.event.ActionListener; // required for click events
import javax.swing.JPanel; // required to create panels
import javax.swing.JFrame; // required to use the frame
import javax.swing.JButton; // required to create buttons
import javax.swing.JLabel; // required to create text fields
import javax.swing.JTextField; // required to create text fields
import java.util.Arrays; // required to sort array
import java.text.DecimalFormat; // required to display numbers in correct format
import javax.swing.ImageIcon; // required to display image
import javax.swing.JOptionPane; // required to use message dialog box
public class GUIInventoryProgram extends JFrame implements ActionListener
// declare class variables
{
// Declare Class Variables
//Declare two panels. gridPanel is main panel. panel is inserted into gridPanel.
private JPanel gridPanel = new JPanel(); // one panel that contains my gridlayout.
private JPanel panel = new JPanel(); // panel used to contain buttons, labels and text fields
// Declare buttons
JButton firstButton; // first button
JButton nextButton; // next button
JButton previousButton; // previous button
JButton lastButton; // last button
JButton addButton; // add button
JButton deleteButton; // delete button
JButton modifyButton; // modify button
JButton saveButton; // save button
JButton searchButton; // search button
// Declare Text Fields
JTextField TitleField; // Dvd Title
JTextField UnitsField; // Units Field
JTextField ItemNumberField; // Item Number field
JTextField PriceField; // Dvd Price field
JTextField ValueField; // Value field
JTextField DirectorField; // Director field
// Declare Labels
JLabel lblTitle; // Title label
JLabel lblUnits; // Units Label
JLabel lblItemNumber; // Item Number label
JLabel lblPrice; // Price Label
JLabel lblValue; // Value of DVDs Label
JLabel lblDirector; //Director Label
// Declare 5 Dvd Objecs
Dvd dvd1;
Dvd dvd2;
Dvd dvd3;
Dvd dvd4;
Dvd dvd5;
private static final int MAX_dvds = 5; // set maximum size for DVD Array
Dvd[] dvd = new Dvd[MAX_dvds]; // create Dvd Array object
DecimalFormat formatter = new DecimalFormat("$##,###.00"); // to display correct decimal format
private static DecimalFormat currency = new DecimalFormat("$#,##0.00"); // to display currency
private static int ArrayIndex = 0; // array index
public GUIInventoryProgram() // constructor
{
MovieDirector d1 = new MovieDirector("Transformers", 7, 1002, 19.98, "Michael Bay");
// Creates an instance of the DVD class and initialize class instance variables
MovieDirector d2 = new MovieDirector("Green Mile", 3, 542, 14.50, "Frank Darabont");
// Creates an instance of the DVD class and initialize class instance variables
MovieDirector d3 = new MovieDirector("Lord of the Rings", 5, 937, 24.98, "Peter Jackson");
// Creates an instance of the DVD class and initialize class instance variables
MovieDirector d4 = new MovieDirector("Jar Head", 2, 865, 9.75, "Sam Mendes");
// Creates an instance of the DVD class and initialize class instance variables
MovieDirector d5 = new MovieDirector("Inception", 6, 1157, 21.97, "Christopher Nolan");
// Creates an instance of the DVD class and initialize class instance variables
// adding Dvd objects to the array
dvd[0] = d1; // adding Transformers to the array of dvds
dvd[1] = d2; // adding Green Mile to the array of dvds
dvd[2] = d3; // adding Lord of the Rings to the array of dvds
dvd[3] = d4; // adding Jar Head to the array of dvds
dvd[4] = d5; // adding Inception to the array of dvds
gridPanel.setLayout(new BorderLayout()); // create a border layout
gridPanel.add(this.createLabelPanel(), BorderLayout.WEST); // add label panel
gridPanel.add(this.createTextPanel(), BorderLayout.CENTER); // add field panel
gridPanel.add(this.createButtonPanel(), BorderLayout.SOUTH); // add button panel
add(gridPanel);
}
// helper method creates a panel for the button
private JPanel createButtonPanel()
{
// ActionListener btnListen = new ButtonListener(); // create listener
// create button objects
firstButton = new JButton("First"); // create button object
firstButton.setActionCommand("First"); // add actionCommand
firstButton.addActionListener(this); // add Listener command
nextButton = new JButton("Next"); // create button object
nextButton.setActionCommand("Next"); // add actionCommand
nextButton.addActionListener(this); // add Listener command
previousButton = new JButton("Previous"); // create button object
previousButton.setActionCommand("Previous"); // add actionCommand
previousButton.addActionListener(this); // add Listener command
lastButton = new JButton("Last"); // create button object
lastButton.setActionCommand("Last"); // add actionCommand
lastButton.addActionListener(this); // add Listener command
addButton = new JButton("Add"); // create button object
addButton.setActionCommand("Add"); // add actionCommand
addButton.addActionListener(this); // add Listener command
deleteButton = new JButton("Delete"); // create button object
deleteButton.setActionCommand("Delete"); // add actionCommand
deleteButton.addActionListener(this); // add Listener command
modifyButton = new JButton("Modify"); // create button object
modifyButton.setActionCommand("Modify"); // add actionCommand
modifyButton.addActionListener(this); // add Listener command
saveButton = new JButton("Save"); // create button object
saveButton.setActionCommand("Save"); // add actionCommand
saveButton.addActionListener(this); // add Listener command
searchButton = new JButton("Search"); // create button object
searchButton.setActionCommand("Search"); // add actionCommand
searchButton.addActionListener(this); // add Listener command
// create panel object
JPanel panel = new JPanel();
panel.add(firstButton); // add firt button to panel
panel.add(nextButton); // add next button to panel
panel.add(previousButton); // add previous button to panel
panel.add(lastButton); // add last button to panel
panel.add(addButton); // add the add button to panel
panel.add(deleteButton); // add delete button to panel
panel.add(modifyButton); // add modify button to panel
panel.add(saveButton); // add save button to panel
panel.add(searchButton); // add search button to panel
return panel; // return panel
} // end createButtonPanel method
private JPanel createLabelPanel()
{
// create instance of label objects
ImageIcon icon = new ImageIcon("/Users/garvishopwood/NetBeansProjects/GUIInventoryProgram/src/home.jpg"); // load the image file
JLabel lblLogo = new JLabel(icon); // add the image to the label
lblTitle = new JLabel("Title:"); // label for Title of DVD
lblUnits = new JLabel("Units:"); // label for Units in stock for DVD
lblItemNumber = new JLabel("Item Number:"); // label for DVD Item Number
lblPrice = new JLabel("Price:"); // label for price of DVD
lblValue = new JLabel("Value of Items:"); // label for value of DVD
lblDirector = new JLabel ("Directors Name:"); // label for Director of DVD
// create panel object
panel = new JPanel();
panel.setLayout(new GridLayout(10, 1));
// add labels to the panel
panel.add(lblLogo);
panel.add(lblTitle);
panel.add(lblUnits);
panel.add(lblItemNumber);
panel.add(lblPrice);
panel.add(lblValue);
panel.add(lblDirector);
return panel;
} // end createLabelPanel method
private JPanel createTextPanel()
{
//create instances of text box objects
JLabel lblCompanyName = new JLabel(" DVD Blowout"); // Label for company name
TitleField = new JTextField(); // Title text field
TitleField.setEditable(true); // set field to editable so fields can be added and modified
UnitsField = new JTextField(); // Units text field
UnitsField.setEditable(true); // set field to editable so fields can be added and modified
ItemNumberField = new JTextField(); // Item Number field
ItemNumberField.setEditable(true); // set field to editable so fields can be added and modified
PriceField = new JTextField(); // Price text field
PriceField.setEditable(true); // set field to editable so fields can be added and modified
ValueField = new JTextField(); // Value text field to sum the total of the DVDs value.
ValueField.setEditable(false); // set field to not editable to prevent user from changing the data
DirectorField = new JTextField(); // Director text field
DirectorField.setEditable(true); // set field to editable so fields can be added and modified
panel = new JPanel(); // create panel object
panel.setLayout(new GridLayout(10, 1)); // create grid layout for fields.
panel.add(lblCompanyName); // logo field
panel.add(TitleField); // add the Title field to the grid layout
panel.add(UnitsField); // add the Units field to the grid layout
panel.add(ItemNumberField); // add the Item Number field to the grid layout
panel.add(PriceField); // add the Price field to the grid layout
panel.add(ValueField); // add the total value field to the grid layout
panel.add(DirectorField); // add the director field to the grid layout
return panel; // return the panel
} // end createTextPanel method
@ Override public void actionPerformed(ActionEvent e)
{
Files outputFile = new Files(); // instantiate the Files class
Dvd.sortByTitle(dvd); // sort the array by name of title
// add button functions
if (e.getActionCommand() == "First") // if First button is clicked
ArrayIndex = 0;
{
TitleField.setText(dvd[ArrayIndex].getDvdTitle()); // get the Dvds title
// and assign it the name text field.
UnitsField.setText(String.valueOf(dvd[ArrayIndex].getDvdUnits()));
// get the units in stock and assign it the Units text field.
ItemNumberField.setText(String.valueOf(dvd[ArrayIndex].getDvdItemNumber()));
// get Dvds item number and assign it the item number text field.
PriceField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdPrice()));
// get the Price of the DVD and assign it the price text field.
ValueField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdValue() + dvd[ArrayIndex].getdvdRestockingfee()));
// display the sum of the total of the DVDs in stock
DirectorField.setText(String.valueOf(dvd[ArrayIndex].getdvdDirector()));
// display the Directors name of the DVD
} // end if
if (e.getActionCommand() == "Next") // if Next button is clicked
if (ArrayIndex < dvd.length)
{
TitleField.setText(dvd[ArrayIndex].getDvdTitle()); // get the Dvds title
// and assign it the name text field.
UnitsField.setText(String.valueOf(dvd[ArrayIndex].getDvdUnits()));
// get the units in stock and assign it the Units text field.
ItemNumberField.setText(String.valueOf(dvd[ArrayIndex].getDvdItemNumber()));
// get Dvds item number and assign it the item number text field.
PriceField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdPrice()));
// get the Price of the DVD and assign it the price text field.
ValueField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdValue() + dvd[ArrayIndex].getdvdRestockingfee()));
// display the sum of the total of the DVDs in stock
DirectorField.setText(String.valueOf(dvd[ArrayIndex].getdvdDirector()));
// display the Directors name of the DVD
ArrayIndex = ArrayIndex + 1; // increment the array index to get to the next value
} // end if
if (e.getActionCommand() == "Previous") // if Previous button is clicked
if (ArrayIndex < dvd.length)
{
TitleField.setText(dvd[ArrayIndex].getDvdTitle()); // get the Dvds title
// and assign it the name text field.
UnitsField.setText(String.valueOf(dvd[ArrayIndex].getDvdUnits()));
// get the units in stock and assign it the Units text field.
ItemNumberField.setText(String.valueOf(dvd[ArrayIndex].getDvdItemNumber()));
// get Dvds item number and assign it the item number text field.
PriceField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdPrice()));
// get the Price of the DVD and assign it the price text field.
ValueField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdValue() + dvd[ArrayIndex].getdvdRestockingfee()));
// display the sum of the total of the DVDs in stock
DirectorField.setText(String.valueOf(dvd[ArrayIndex].getdvdDirector()));
// display the Directors name of the DVD
ArrayIndex = ArrayIndex - 1; // increment the array index to get to the previous value
} // end if
if (e.getActionCommand() == "Last") // if Last button is clicked
ArrayIndex = (dvd.length - 1);
{
TitleField.setText(dvd[ArrayIndex].getDvdTitle()); // get the Dvds title
// and assign it the name text field.
UnitsField.setText(String.valueOf(dvd[ArrayIndex].getDvdUnits()));
// get the units in stock and assign it the Units text field.
ItemNumberField.setText(String.valueOf(dvd[ArrayIndex].getDvdItemNumber()));
// get Dvds item number and assign it the item number text field.
PriceField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdPrice()));
// get the Price of the DVD and assign it the price text field.
ValueField.setText(String.format("$ %8.2f", dvd[ArrayIndex].getDvdValue() + dvd[ArrayIndex].getdvdRestockingfee()));
// display the sum of the total of the DVDs in stock
DirectorField.setText(String.valueOf(dvd[ArrayIndex].getdvdDirector()));
// display the Directors name of the DVD
}
if (e.getActionCommand() == "Add") // if Add button is clicked
{
String dvdTitle = JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the dvd's name");
int dvdUnits = Integer.parseInt(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the units in stock"));
Double dvdItemNumber = Double.parseDouble(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the Item number for the DVD"));
double dvdPrice = Double.parseDouble(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the price of each item"));
String dvdDirector = JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the director");
// make the object
MovieDirector Dvd = new MovieDirector(Title, Units, Item Number, Price, Director);
// put it in the inv, at the very end
dvd[ArrayIndex].setDvdTitle(TitleField.getText());
dvd[ArrayIndex].setDvdUnits(UnitsField.getText());// get the value from the text field and assign it to the array.
}
if (e.getActionCommand() == "Delete") // if Delete button is clicked
{
// code here
}
if (e.getActionCommand() == "Modify") // if Modify button is clicked
}
MovieDirector Dvd = inv.get(view);
Dvd.setDvdTitle(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter new item name",dvd.getDvdTitle()));
Dvd.setDvdUnits(Integer.parseInt(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter new units in stock",dvd.getDvdUnits())));
Dvd.setDvdItemNumber(Integer.parseInt(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter new item number",dvd.getDvdItemNumber())));
Dvd.setDvdPrice(Double.parseDouble(JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter new price of each item",dvd.getDvdPrice())));
if (dvd instanceof MovieDirector)
}
((MovieDirector)dvd).setdvdDirector(
JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter new director",((MovieDirector)dvd).getdvdDirector()));
}
}
if (e.getActionCommand() == "Search") // if Search button is clicked
{
String str = JOptionPane.showInputDialog(GUIInventoryProgram.this,"Enter the name to search for");
int result = inv.search(str);
if (result == -1) JOptionPane.showMessageDialog(GUIInventoryProgram.this,"Not found"); // do nothing
else { // show the item
view = result;
showDvd();
}
if (e.getActionCommand() == "Save") // if Save button is clicked
{
try
{
outputFile.appendToFile(dvd[ArrayIndex].getDvdTitle());
outputFile.appendToFile(", ");
outputFile.appendToFile(String.valueOf(dvd[ArrayIndex].getDvdUnits()));
outputFile.appendToFile(", ");
outputFile.appendToFile(String.valueOf(dvd[ArrayIndex].getDvdItemNumber()));
outputFile.appendToFile(", ");
outputFile.appendToFile(String.format("$ %8.2f", dvd[ArrayIndex].getDvdPrice()));
outputFile.appendToFile(", ");
outputFile.appendToFile(String.format("$ %8.2f", dvd[ArrayIndex].getDvdValue() + dvd[ArrayIndex].getdvdRestockingfee()));
outputFile.appendToFile(", ");
outputFile.appendToFile(String.valueOf(dvd[ArrayIndex].getdvdDirector()));
outputFile.appendToFile(", ");
JOptionPane.showMessageDialog(null, dvd[ArrayIndex].getDvdTitle() + " has been saved to the file."); // message indicating the file has been saved
}
catch (Exception ex)
{//Catch exception if any
JOptionPane.showMessageDialog(null, "Error: " + ex.getMessage()); // catch errors that can occur
}
} // end if
} // end actionPerformed
public static void main(String[] args)
{
JFrame frame = new GUIInventoryProgram(); // creat a frame object
frame.setSize(800, 400); // set the size of the window - 400 is width, 400 is height
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // close the application
frame.setTitle("DVD Inventory"); // set the title of the window
frame.setLocationRelativeTo( null ); // center the form
frame.setVisible(true); // display form
} // end main
} // end GUIInventoryProgram classpackage guiinventoryprogram;
class Dvd {
// declare instance variables
private String dvdTitle; //title of dvd
private int dvdUnits; // number of units of the dvd
private double dvdItemNumber; // item number of the dvd
private double dvdPrice; // Price of the dvd
private String dvdDirector; // Director of the DVD
public Dvd()
{
}
//declare DVD constructor that shows title, stock, item, and price
public Dvd(String Title, int Units, double ItemNumber, double Price, String Director) {
//call to Object constructor occurs here
dvdTitle = Title;
dvdUnits = Units;
dvdItemNumber = ItemNumber;
dvdPrice = Price;
dvdDirector = Director;
} //end five-argument constructor
//set DVD name
public void setdvdTitle(String Title) {
setdvdTitle(Title);
} //end method setDvdTitle
//return dvd Title
public String getDvdTitle() {
return dvdTitle;
} //end method getDvdTitle
//set Dvd stock
public void setDvdUnits(int Units) {
dvdUnits = (Units < 0) ? 0 : Units;
} //end method setDvdStock
//return dvd stock
public double getDvdUnits() {
return dvdUnits;
} //end method getDvdStock
public void setDvdItemNumber(int ItemNumber) {
dvdItemNumber = (ItemNumber < 0.0) ? 0.0 : ItemNumber;
} //end method set dvd Item
//return dvd item
public double getDvdItemNumber() {
return dvdItemNumber;
} //end method getDvdItem
public void setDvdPrice(double Price) {
dvdPrice = (Price < 0.0) ? 0.0 : Price;
} //end method SetDvdPrice
//return dvd price
public double getDvdPrice() {
return dvdPrice;
} //end method get Dvd Price
// calculate inventory value
public double getDvdValue() {
return getDvdPrice() * dvdUnits;
} //end method value
// calulate restocking fee
public double getdvdRestockingfee() {
return getDvdValue() * .05;
}
//set dvdDirector
public void setdvdDirector(String Director) {
setdvdDirector(Director);
} //end method setdvd Director
//return dvd Director
public String getdvdDirector() {
return dvdDirector;
} //end method getDvd director
public static void sortByTitle(Dvd dvd[])
{ // sort the dvd by title
Dvd temp;
for(double j = dvd.length - 2; j >= 0; j--)
for(int i = 0 ; i <= j ; i++)
if(dvd [ i ].getDvdTitle().compareTo(dvd[ i + 1 ].getDvdTitle())>0)
{
temp=dvd[ i ];
dvd[ i ] = dvd[ i + 1 ];
dvd[ i + 1 ] = temp;
}
} // end sort by title method
} // end class dvdpackage guiinventoryprogram;
class MovieDirector extends Dvd{
//declare instance variables
private String dvdDirector;
private double Restockingfee;
// declare MovieDirector constructor which adds int the director
public MovieDirector(String Title, int Units, int ItemNumber, double Price, String Director)
{
super(Title, Units, ItemNumber, Price, Director);
this.dvdDirector = Director;
this.Restockingfee = Restockingfee;
}
// gets the directors name
public String getDirector() {
return dvdDirector;
}
// returns directors name
public void setDirector(String Director) {
this.dvdDirector = Director;
}
// calculates restocking fee
public double getRestockingfee() {
return getDvdValue() * 0.05;
}
// adds in restocking fee
public void setRestockingfee (double Restockingfee){
this.Restockingfee = Restockingfee;
}
}import java.io.*; // import Java class library required to work with files.
import javax.swing.JOptionPane; // import JOptionPane required to use message dialog box.
public class Files
{ // create a file
public void createFile()throws IOException
{
File dataFile; // declare file
dataFile = new File("c:\\outputFile.dat"); // create instance of new file
if (!dataFile.exists())
{ // if file does not exist
dataFile.createNewFile(); // create the file
JOptionPane.showMessageDialog(null, "New file \"c:\\outputFile.dat\" has been created to the c directory.");
}
else
{
JOptionPane.showMessageDialog(null, "The specified file already exists.");
}
} // end Create File
public void appendToFile(String inData)
{
try
{
FileWriter fstream = new FileWriter("c:\\outputFile.dat", true); // create file if it does not exist and append data. If the file exists, append data
BufferedWriter outputFile = new BufferedWriter(fstream); // declare output file
outputFile.write(inData); // append text to output file
//Close the output stream
outputFile.close(); // close the file
} // end try
catch (Exception e)
{//Catch exception if any
JOptionPane.showMessageDialog(null, "Error: " + e.getMessage()); // catch errors that can occur
} // end catch
}
} // end class Files