Cost Estimating Applet HELP PLEASE!!!!!!!!!

Question

i need to develop an applet that calculates the choices that the user makes and the numeric input in the textfield...i have done a basic applet with a panel and 3 comboboxes that i need and the textfield. my problem is how to take the value that the user inputs from the textfield in order to calculate it with the other choices. in the begginng when i had the only the combo boxes was working fine..when i added the textfield something in the code smells..i provide anyone who wants to help with the code..thanx everyone for their time...
* Course Work Assignment - Applet Programming *
* Programmed by Christos Lappas *
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import javax.swing.JApplet;
import javax.swing.JComboBox;
import javax.swing.JFormattedTextField;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.TitledBorder;
* This is the main class that implements the "Pricer" applet.
public class Pricer extends JApplet {
// The standar colours available
private String[] colours = {"None","Red","White","Black"};
// Bonus colour available only for Cars and Boats
private String bonusColour = "Any other color";
// The standar items available
private String[] items = {"None","<50 tiles","100>50 tiles","100=<"};
// The base prices of these items
private double[] prices = {0,1.1,1.0,0.8};
// The sizes available
private String[] sizes = {"None","small","normal","large"};
// Initialize the combo-boxes
private JComboBox item = new JComboBox(items);
private JComboBox size = new JComboBox(sizes);
private JComboBox colour = new JComboBox(colours);
private int cols = 5;
private int tiles;
private JTextField notiles = new JTextField(cols);
// Initialize the price
private JLabel price = new JLabel("Please select a combination");
// Initialize the current values
private int curTeam = 0;
private int curItem = 0;
private int curColour = 0;
private int curSize = 0;
* The constructor method. Leaves everything to the init method.
public Pricer()
// do nothing
* Initialize the components and add them to the applet.
public void init()
// Set applet size and layout
this.setSize(new Dimension(400,250));
this.getContentPane().setLayout(new BorderLayout());
// Initialize the title
JLabel title = new JLabel("Tiles-U-Like Inc.");
title.setHorizontalAlignment(SwingConstants.CENTER);
title.setFont(new java.awt.Font("Comic Sans MS", 2, 16));
title.setMaximumSize(new Dimension(400,50));
title.setMinimumSize(new Dimension(400,50));
title.setPreferredSize(new Dimension(400,50));
// Initialize the price
price.setHorizontalAlignment(SwingConstants.CENTER);
price.setFont(new java.awt.Font("Comic Sans MS", 2, 14));
price.setMaximumSize(new Dimension(400,50));
price.setMinimumSize(new Dimension(400,50));
price.setPreferredSize(new Dimension(400,50));
// Initialize the optionPanel that will hold the combo-boxes
JPanel optionPanel = new JPanel();
TitledBorder border = new TitledBorder("Choose a combination to display it's value");
border.setTitleJustification(TitledBorder.CENTER);
optionPanel.setBorder(border);
optionPanel.setMaximumSize(new Dimension(594, 450));
optionPanel.setMinimumSize(new Dimension(394, 350));
optionPanel.setPreferredSize(new Dimension(400, 400));
// Create the Anonymous Class that will handle the item's actions
item.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e1) {
int itemIndex = item.getSelectedIndex();
if (itemIndex!=curItem) // If the selection was changed
curItem = itemIndex;
int team = ((itemIndex==1) || (itemIndex==5))?1:0;
if ((team != curTeam) && (itemIndex>0)) // If team changed
curTeam = team;
setColours(team); // Fix the colours
// Finally, calculate and display the price
// for the new combination
displayPrice();
// Create the Anonymous Class that will handle the size's actions
size.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e2) {
int sizeIndex = size.getSelectedIndex();
// If the selection was changed, calculate and display
// the price for the new combination
if (sizeIndex!=curSize)
curSize = sizeIndex;
displayPrice();
// Create the Anonymous Class that will handle the colour's actions
colour.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e2) {
int colourIndex = colour.getSelectedIndex();
// If the selection was changed, calculate and display
// the price for the new combination
if (colourIndex!=curColour)
curColour = colourIndex;
displayPrice();
//Class to handle tiles actions
notiles.addActionListener(new java.awt.event.ActionListener(){
               public void actionPerformed(ActionEvent e3) {
// Add the combo-boxes to the optionPanel
optionPanel.add(item);
optionPanel.add(size);
optionPanel.add(colour);
optionPanel.add(notiles);
// Add the components to the applet
this.getContentPane().add(title, "North");
this.getContentPane().add(optionPanel, "Center");
this.getContentPane().add(price, "South");
// This method determines the available colours
// depending on the curent team
private void setColours(int team)
if (team==1) colour.addItem(bonusColour);
else colour.removeItem(bonusColour);
// This method calculates and displays the price
private void displayPrice()
// If an invalid combination was selected,
// display the appropriate message
if ((curItem==0) || (curSize==0) || (curColour==0)|| (tiles==0))
price.setFont(new java.awt.Font("Comic Sans MS", 2, 14));
price.setText("Please select a valid combination");
else // valid combination
// Determine the base price, as well as the
// colour and size bias
double base = prices[curItem];
double colAdd=0, sizeAdd=0;
switch (curColour)
case 1: colAdd=1.25; break; // Red or Green
case 2: colAdd=1.0; break; // White
case 3: colAdd=1.50; break; // Black
case 4: colAdd=3.50; break; // Any other
switch (curSize)
case 1: sizeAdd=-6.75; break; // Small
case 2: sizeAdd=4.25; break; // Normal
case 3: sizeAdd=3.50; break; // Large
// Determine the total price
double totalPrice = Math.round(base + (base*colAdd) + (base*sizeAdd)+ (base*tiles));
// Set the font and print the result (rounded)
price.setFont(new java.awt.Font("Comic Sans MS", 1, 18));
price.setText(Math.round(totalPrice)+" pounds");
}

Answer 1

ok then..i want the applet to take the options from
the comboboxes and the number from the
textfield..multiplying them all together and display
the total price..originally the problem was stated
as: An applet is required that allows a potential
customer to obtain an estimate of the cost associated
with tiling a supplied square area of floor with
tiles of a specified size and colour.
...that is all for now..i can provide even more
detailed description..thanx..I don't need a more detailed of your homework, I need a more detailed description of your problem.