Just Learned!!: java Shopping Cart with swing

package OnlineShop;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Login
{

 protected JFrame jfrmLogin = new JFrame ("Login");
 protected JPasswordField txtPassword = new JPasswordField(10);
 protected JTextField txtLoginName = new JTextField(10);
 protected JPanel jplLogin = new JPanel(null);
 protected JLabel lblMessage = new JLabel("");
 protected JButton btnSubmit = new JButton("Login");
 protected JButton btnCancel = new JButton("Cancel");

 public static void main(String[] args)
 {
 new Login().display();
 JFrame.setDefaultLookAndFeelDecorated(true);
 }

 void display()
 {

 JLabel lblLoginName = new JLabel("Login Name");
 JLabel lblPassword = new JLabel("Password");

 Container contPane = jfrmLogin.getContentPane();

 lblLoginName.setLabelFor(txtLoginName);

 lblPassword.setLabelFor(txtPassword);

 lblLoginName.setBounds(50,50,100,20);
 txtLoginName.setBounds(150,50, 150, 20);
 txtLoginName.setText("admin");
 lblPassword.setBounds(50,80,100,20);
 txtPassword.setBounds(150,80, 150, 20);
 txtPassword.setText("admin123");

 btnSubmit.setBounds(150,120,100,25);

 lblMessage = new JLabel();
 jplLogin.add(lblLoginName);
 jplLogin.add(txtLoginName);
 jplLogin.add(lblPassword);
 jplLogin.add(txtPassword);
 jplLogin.add(btnSubmit);
 jplLogin.add(lblMessage);

 lblMessage.setFont(new Font("Calibri", Font.ITALIC, 15));
 lblMessage.setForeground(Color.darkGray);
 contPane.add(jplLogin);
 contPane.add(lblMessage,BorderLayout.PAGE_START);



 txtPassword.setText("admin123");
 txtLoginName.setText("admin");
 btnSubmit.addActionListener(new MyActionListener(this));
 btnCancel.addActionListener(new MyActionListener(this));

 jfrmLogin.getRootPane().setDefaultButton(btnSubmit);
 jfrmLogin.setSize(375,275);
 jfrmLogin.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 jfrmLogin.setVisible(true);
 Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();

 // Determine the new location of the window
 int w = jfrmLogin.getSize().width;
 int h = jfrmLogin.getSize().height;
 int x = (dim.width-w)/2;
 int y = (dim.height-h)/2;


 jfrmLogin.setLocation(x, y);

 }
}

class MyActionListener implements ActionListener
{
 Login objLog;
 MyActionListener(Login log)
 {
 this.objLog = log;
 }

 public void actionPerformed(ActionEvent e)
 {
 User objUser = new User();
 objLog.lblMessage.setFont(new Font("Trebuchet Ms", Font.PLAIN, 14));
 objLog.lblMessage.setForeground(Color.BLACK);

 if (e.getSource() == objLog.btnSubmit)
 {
 if(objLog.txtLoginName.getText().isEmpty() || objLog.txtPassword.getText().isEmpty())
 {
 objLog.lblMessage.setText("Login Name / Password required to Login");
 objLog.jplLogin.setBackground(Color.RED);
 objLog.jfrmLogin.repaint();
 }
 else
 {
 if (objLog.txtLoginName.getText().equals(objUser.getLoginName()) && objLog.txtPassword.getText().equals(objUser.getPassword()))
 {
 objLog.jplLogin.setBackground(Color.GREEN);
 objLog.jfrmLogin.setVisible(false);
 new ProductSelection(objUser).display();
 objLog.jfrmLogin.dispose();
 }
 else
 {
 objLog.jplLogin.setBackground(Color.RED);
 objLog.lblMessage.setText("Incorrect login name / password");
 objLog.jfrmLogin.repaint();
 }
 }
 }

 if (e.getSource() == objLog.btnCancel)
 {
 System.exit(0);
 }
 }

}

image path had hard coded

package OnlineShop;

/**
*
* @author Roshan
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.LineBorder;
import java.util.*;

public class ImagePanel
{
 ProductSelection productSel;

 ImagePanel(ProductSelection pro)
 {
 productSel =pro;
 }

 JPanel hpPanel(User authUser)
 {
 JPanel panelLaptopHp = new JPanel();
 panelLaptopHp.add(this.CreateJPanel(new Product(115000, "HP Pavilion DV6 3061", "<html>Core i7 1.6GHz, 6GB DDR3, 640GB,1GB VGA, Win7</html>"),"Laptop_HP_1.jpg", authUser));
 panelLaptopHp.add(this.CreateJPanel(new Product(85000, "HP Pavilion dv5t series", "<html>Core i3 2.6GHz, 2GB DDR3, 640GB,1GB VGA, Win7</html>"),"Laptop_HP_2.jpg", authUser));
 panelLaptopHp.add(this.CreateJPanel(new Product(105000, "HP Pavilion dv4 series", "<html>Core i5 2.6GHz, 4GB DDR3, 500GB,1GB VGA, Win7</html>"),"Laptop_HP_3.jpg", authUser));
 panelLaptopHp.add(this.CreateJPanel(new Product(115000, "HP Pavilion dm3t series", "<html>Core dual core 2.4 GHz, 6GB DDR2,320GB,512MB VGA, Win7</html>"),"Laptop_HP_4.jpg", authUser));
 return panelLaptopHp;
 }

 JPanel dellPanel(User authUser)
 {

 JPanel panelLaptopDell= new JPanel();

 panelLaptopDell.add(this.CreateJPanel(new Product(95000, " dell 620", "<html>Core dual core 2.6GHz, 2GB DDR2, 320GB,1GB VGA, DOS </html>"),"Laptop_Dell_1.jpg", authUser));
 return panelLaptopDell;

 }

 JPanel iBMDeskPanel (User authUser){
 JPanel panelIBM = new JPanel();

 panelIBM.add(this.CreateJPanel(new Product(55000, "IBM PC 300 products (Type 6344, 6345)", "<html>Core i3 1.6GHz, 4GB DDR2, 320GB,512 MB VGA, Win7</html>"),"Desktop_IBM_1.jpg", authUser));
 panelIBM.add(this.CreateJPanel(new Product(49890, "IBM PC 300GL and PC 300XL products", "<html>Core core2-duo 2.6GHz, 2GB DDR3, 500GB,1GB VGA, Win7</html>"),"Desktop_IBM_2.jpg", authUser));
 panelIBM.add(this.CreateJPanel(new Product(38585, "IBM PC 300PL products (Types 6562, 6592, 6862, 6892)", "<html>Core i7 1.6GHz, 6GB DDR3, 640GB,1GB VGA ,Win7</html>"),"Desktop_IBM_3.jpg", authUser));
 panelIBM.add(this.CreateJPanel(new Product(62000, "IBM PC 300PL products (Types 6565, 6566, 6584, 6594, 6595, 6872, 6890)", "<html>Core i7 1.6GHz, 6GB DDR3, 640GB,1GB VGA, Win7</html>"),"Desktop_IBM_4.jpg", authUser));
 return panelIBM;

 }

 JPanel hPDeskPanel (User authUser){
 JPanel panelHP = new JPanel();
 panelHP.add(this.CreateJPanel(new Product(55000, "HP PC products d220 ", "<html>Core i7 1.6GHz, 6GB DDR3, 640GB,1GB VGA, Dos</html>"),"Desktop_HP_1.jpg", authUser));
 panelHP.add(this.CreateJPanel(new Product(49890, "HP PC and PC 300XL d325", "<html>Core i3 2.6GHz, 6GB DDR3, 640GB,1GB VGA, Dos</html>"),"Desktop_HP_2.jpg", authUser));
 panelHP.add(this.CreateJPanel(new Product(38585, "HP PC products dc5000", "<html>Core i5 3.2GHz, 4GB DDR3, 640GB,1GB VGA, DOs</html>"),"Desktop_HP_3.jpg", authUser));
 panelHP.add(this.CreateJPanel(new Product(62000, "HP PC products rp5000", "<html>Core i7 1.6GHz, 6GB DDR3, 640GB,1GB VGA, Dos</html>"),"Desktop_HP_4.jpg", authUser));
 return panelHP;
 }

 JPanel compaqPanel(User authUser) {
 JPanel panelLaptopCq = new JPanel();
 panelLaptopCq.add(this.CreateJPanel(new Product(65000, " Compaq 620", "<html>Core i3 2.6GHz, 2GB DDR2, 320GB, 1GB VGA,Dos</html>"),"Laptop_CoQ_1.jpg", authUser));
 panelLaptopCq.add(this.CreateJPanel(new Product(75000, "Compaq 420", "<html>Core i5 2.6GHz, 4GB DDR2, 500GB, 2GB VGA,Dos</html>"),"Laptop_CoQ_2.jpg", authUser));
 return panelLaptopCq;
 }

 JPanel hardDiskPanel(User authUser){
 JPanel panelHardDisk = new JPanel();
 panelHardDisk.add(this.CreateJPanel(new Product(5880, "Maxtor", "<Html>Internal 500 GB</html>"),"HardDisk_1.jpg", authUser));
 panelHardDisk.add(this.CreateJPanel(new Product(13000, "SeaGate", "<Html>External 1 TB</html>"),"HardDisk_2.jpg", authUser));
 panelHardDisk.add(this.CreateJPanel(new Product(11500, "Toshiba", "<Html>External 1 TB</html>"),"HardDisk_3.jpg", authUser));
 panelHardDisk.add(this.CreateJPanel(new Product(11500, "Samsung", "<Html>External 500 GB</html>"),"HardDisk_4.jpg", authUser));
 return panelHardDisk;
 }

 JPanel keyBoardPanel(User authUser){
 JPanel panelkeyBoard = new JPanel();
 panelkeyBoard.add(this.CreateJPanel(new Product(800, "HP", "<Html>Wireless Professional</html>"),"KeyBoard_1.jpg", authUser));
 panelkeyBoard.add(this.CreateJPanel(new Product(1200, "A4 tech", "<Html>Wireless Flexible</html>"),"KeyBoard_2.jpg", authUser));
 panelkeyBoard.add(this.CreateJPanel(new Product(1200, "HP", "<Html>PS/2 Classic</html>"),"KeyBoard_3.jpg", authUser));
 panelkeyBoard.add(this.CreateJPanel(new Product(1240, "HP", "<Html>Wireless flexible</html>"),"KeyBoard_4.jpg", authUser));
 return panelkeyBoard;
 }

 JPanel mousePanel(User authUser){
 JPanel panelMouse = new JPanel();
 panelMouse.add(this.CreateJPanel(new Product(850, "Mega Box", "<Html>Optical</html>"),"Mouse_1.jpg", authUser));
 panelMouse.add(this.CreateJPanel(new Product(750, "A4 tech", "<Html>PS/2</html>"),"Mouse_2.jpg", authUser));
 panelMouse.add(this.CreateJPanel(new Product(1050, "Microsoft", "<Html>WireLess</html>"),"Mouse_3.jpg", authUser));
 panelMouse.add(this.CreateJPanel(new Product(1150, "Microsoft", "<Html>WireLess gaming</html>"),"Mouse_4.jpg", authUser));
 return panelMouse;
 }

 JPanel speakerPanel(User authUser){
 JPanel panelSpeaker = new JPanel();

 panelSpeaker.add(this.CreateJPanel(new Product(900, " Creative", "<html>2 channel 600 w</html>"),"Speaker_1.jpg", authUser));
 panelSpeaker.add(this.CreateJPanel(new Product(1500, "Divoom", "<html>2 channel 800 w</html>"),"Speaker_2.jpg", authUser));
 panelSpeaker.add(this.CreateJPanel(new Product(3500, "JBL", "<html>4 channel 800 w</html>"),"Speaker_3.jpg", authUser));
 panelSpeaker.add(this.CreateJPanel(new Product(1500, "Sony", "<html>2 channel 800 w</html>"),"Speaker_4.jpg", authUser));
 return panelSpeaker;
 }

 JPanel mornitorPanel(User authUser){
 JPanel panelMorintor = new JPanel();

 panelMorintor.add(this.CreateJPanel(new Product(12000, "HP", "<html>Aspect Ratio:3M color LED</html"),"Mornitor_1.jpg", authUser));
 panelMorintor.add(this.CreateJPanel(new Product(14990, "PixelView", "<html>Aspect Ratio:3M color LED<</html"),"Mornitor_2.jpg", authUser));
 panelMorintor.add(this.CreateJPanel(new Product(14990, "BenQ", "<html>Aspect Ratio:3M color LCD<</html"),"Mornitor_3.jpg", authUser));
 panelMorintor.add(this.CreateJPanel(new Product(14990, "Samsung", "<html>Aspect Ratio:3M color</html"),"Mornitor_4.jpg", authUser));
 return panelMorintor;
 }

 JPanel motherBoardPanel(User authUser){
 JPanel panelMotherBoard= new JPanel();
 panelMotherBoard.add(this.CreateJPanel(new Product(6250, "FoxConn ", "<HTML>A 780 GM</HTML>"),"MB_1.jpg", authUser));
 panelMotherBoard.add(this.CreateJPanel(new Product(6400, "MSI ", "<HTML>X 68</HTML>"),"MB_2.jpg", authUser));
 panelMotherBoard.add(this.CreateJPanel(new Product(8500, "Intel", "<HTML>LGA 775</HTML>"),"MB_3.jpg", authUser));
 panelMotherBoard.add(this.CreateJPanel(new Product(6500, "Asus ", "<HTML>LGA 795</HTML>"),"MB_4.jpg", authUser));
 return panelMotherBoard;
 }

 JPanel vGAPanel(User authUser){
 JPanel panelVGA= new JPanel();
 panelVGA.add(this.CreateJPanel(new Product(7750, " Nvdia 620 fx", "<HTML>Memory 1 GB</HTML>"),"VGA_1.jpg", authUser));
 panelVGA.add(this.CreateJPanel(new Product(7220, "Nvidia 420 fx ", "<HTML>Memory 512 MB</HTML>"),"VGA_2.jpg", authUser));
 panelVGA.add(this.CreateJPanel(new Product(7220, "ATI Radeon 8500 mx", "<HTML>Memory 512 MB</HTML>"),"VGA_3.jpg", authUser));
 panelVGA.add(this.CreateJPanel(new Product(7220, "ATI Radeon 6500 mx", "<HTML>Memory 256 MB</HTML>"),"VGA_4.jpg", authUser));
 return panelVGA;
 }

 JPanel processorPanel(User authUser){
 JPanel panelProcessor= new JPanel();
 panelProcessor.add(this.CreateJPanel(new Product(8000, "Intel", "<html>i7 FSB 800hz</html>"),"Processor_1.jpg", authUser));
 panelProcessor.add(this.CreateJPanel(new Product(5500, "Intel", "<html>i5 FSB 1024hz</html>"),"Processor_2.jpg", authUser));
 panelProcessor.add(this.CreateJPanel(new Product(4020, "AMD 64", "<html>i7 FSB 800hz</html>"),"Processor_3.jpg", authUser));
 panelProcessor.add(this.CreateJPanel(new Product(5000, "Intel Core 2", "<html>64 bit FSB 800hz</html>"),"Processor_4.jpg", authUser));
 return panelProcessor;
 }

 JPanel casingPanel(User authUser){
 JPanel panelCasing= new JPanel();
 panelCasing.add(this.CreateJPanel(new Product(1000, " Mercury", "<html> ATX</html>"),"Casing_1.jpg", authUser));
 panelCasing.add(this.CreateJPanel(new Product(1000, "Sysnon", "<html> ATX</html>"),"Casing_2.jpg", authUser));
 panelCasing.add(this.CreateJPanel(new Product(1500, "Apple", "<html> ATX</html>"),"Casing_3.jpg", authUser));
 panelCasing.add(this.CreateJPanel(new Product(1250, "Gigabyte", "<html> ATX</html>"),"Casing_4.jpg", authUser));
 return panelCasing;
 }

 JPanel ramPanel(User authUser){
 JPanel panelRam = new JPanel();

 panelRam.add(this.CreateJPanel(new Product(3000, "Kingston ", "<html>2GB DDR2</html>"),"Ram_1.jpg", authUser));
 panelRam.add(this.CreateJPanel(new Product(4500, "Gigabyte", "<html>2GB DDR3</html>"),"Ram_2.jpg", authUser));
 panelRam.add(this.CreateJPanel(new Product(6000, "Trancend", "<html>4GB DD/r2</html>"),"Ram_3.jpg", authUser));
 panelRam.add(this.CreateJPanel(new Product(8500, "eSys", "<html>4GB DDR3</html>"),"Ram_4.jpg", authUser));
 return panelRam;
 }
 private JPanel CreateJPanel(Product p,String img,User authUser)
 {
 JPanel panelProduct= new JPanel(new FlowLayout(FlowLayout.CENTER,7,8));
 panelProduct.setPreferredSize(new Dimension(200,250));
 ImageIcon icon = new ImageIcon("src//Images//"+img);
 JLabel label = new JLabel(p.getDescription());

 label.setVerticalTextPosition(JLabel.BOTTOM);
 label.setHorizontalTextPosition(JLabel.CENTER);
 label.setForeground(Color.BLACK);
 label.setIcon(icon);
 label.setForeground(Color.BLUE);
 label.setFont(new Font("Trebuchet", Font.BOLD, 12));
 label.setToolTipText("<HTml>"+p.getName()+" "+p.getDescription());

 JLabel lblprice = new JLabel( "Rs. "+p.getPrice());
 lblprice.setVerticalTextPosition(JLabel.BOTTOM);
 lblprice.setHorizontalTextPosition(JLabel.CENTER);
 JCheckBox jchkBoxHpLap = new JCheckBox("Buy");

 JComboBox jcmbQty = new JComboBox(new Integer[]{1,2,3,4,5,6,7,8,9,10});
 p.setQuantity((Integer)jcmbQty.getSelectedItem());
 jcmbQty.addActionListener(new ComboListener(p));

 jchkBoxHpLap.addItemListener(new MyCheckBoxListener(p,authUser,productSel));

 panelProduct.add(label,BorderLayout.NORTH);
 panelProduct.add(lblprice,BorderLayout.CENTER);
 panelProduct.add(jchkBoxHpLap);
 panelProduct.add(jcmbQty);
 panelProduct.setBorder(new LineBorder(Color.cyan,1));

 return panelProduct;
 }
}

class MyCheckBoxListener implements ItemListener {

 User customer;
 Product product;
 ProductSelection prodSel;

 MyCheckBoxListener(Product p, User authUser,ProductSelection prodSel) {
 customer = authUser;
 this.product = p;
 this.prodSel = prodSel;
 }

 public void itemStateChanged(ItemEvent e) {

 if (e.getStateChange() == ItemEvent.SELECTED)
 customer.purchasedProducts.add(product);
 else
 customer.purchasedProducts.remove(product);

 this.updateJList(customer.purchasedProducts);

 }

 void updateJList(ArrayList<Product> arr)
 {
 prodSel.listmodel.clear();
 double dblAmount = 0.0;

 for (Product p : arr)
 {
 prodSel.listmodel.addElement(p.getName()+" "+p.getPrice()+" x"+p.getQuantity());
 dblAmount += p.getPrice()*p.getQuantity();
 }

 prodSel.lblAmount.setText("Total Amount : "+dblAmount);
 prodSel.Amount = dblAmount;
 }

}
class ComboListener implements ActionListener{
 Product selPro;
 ComboListener(Product p){
 this.selPro = p;
 }
 public void actionPerformed(ActionEvent e) {
 JComboBox jcmbQty = (JComboBox)e.getSource();
 selPro.setQuantity((Integer)jcmbQty.getSelectedItem());
 }

}

package OnlineShop;

/**
*
* @author Roshan
*/
public class Product {

 private double price;
 private String name;
 private String description;
 private int quantity;
 Product(double price , String name,String description){
 this.price = price;
 this.name = name;
 this.description = description;

 }
 protected void setQuantity(int qnt){
 this.quantity = qnt;
 }
 protected double getPrice(){
 return this.price;
 }
 protected String getName(){
 return this.name;
 }
 protected String getDescription(){
 return this.description;
 }
 protected int getQuantity(){
 return this.quantity;
 }

}

package OnlineShop;

/**
*
* @author Roshan
*/
import java.awt.*;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.border.LineBorder;

import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeSelectionModel;

public class ProductSelection {

 protected User buyer;
 protected JTree tree;
 protected JFrame frame;
 protected JList purchaseProduct;
 protected JPanel currentPanel;
 protected JPanel jplLaptopHP;
 protected JPanel jplLaptopCQ;
 protected JPanel jplLaptopDell;
 protected JPanel jplDesktopIBM;
 protected JPanel jplDesktopHP;
 protected JPanel jplHardDisk;
 protected JPanel jplMornitor;
 protected JPanel jplMouse;
 protected JPanel jplSpeaker;
 protected JPanel jplKeyBoard;
 protected JPanel jplMotherBoard;
 protected JPanel jplVGA;
 protected JPanel jplProcessor;
 protected JPanel jplRAM;
 protected JPanel jplCasing;
 protected DefaultListModel listmodel;
 protected JLabel lblAmount;
 protected JPanel jpnlAmount;
 protected double Amount;
 private javax.swing.JDialog jDialog1;

 ProductSelection(User authUser) {
 this.buyer = authUser;
 currentPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 80, 40));
 ImagePanel lp = new ImagePanel(this);
 this.jplLaptopHP = lp.hpPanel(authUser);
 this.jplLaptopCQ = lp.compaqPanel(authUser);
 this.jplLaptopDell = lp.dellPanel(authUser);
 this.jplDesktopIBM = lp.iBMDeskPanel(authUser);
 this.jplDesktopHP = lp.hPDeskPanel(authUser);
 this.jplKeyBoard = lp.keyBoardPanel(authUser);
 this.jplMornitor = lp.mornitorPanel(authUser);
 this.jplMouse = lp.mousePanel(authUser);
 this.jplSpeaker = lp.speakerPanel(authUser);
 this.jplMotherBoard = lp.motherBoardPanel(authUser);
 this.jplHardDisk = lp.hardDiskPanel(authUser);
 this.jplVGA = lp.vGAPanel(authUser);
 this.jplProcessor = lp.processorPanel(authUser);
 this.jplRAM = lp.ramPanel(authUser);
 this.jplCasing = lp.casingPanel(authUser);
 }

 void display() {
 User ObjUser = new User();
 frame = new JFrame("WELCOME " + ObjUser.getLoginName().toUpperCase() + " !");
 JScrollPane scroll = new JScrollPane();

 DefaultMutableTreeNode root = new DefaultMutableTreeNode("ECSE501 Computers");
 DefaultMutableTreeNode nodeLaptop = new DefaultMutableTreeNode("Laptop");
 root.add(nodeLaptop);
 //****************************
 DefaultMutableTreeNode nodeLaptopHp = new DefaultMutableTreeNode(" HP");
 DefaultMutableTreeNode nodeLaptopCq = new DefaultMutableTreeNode(" Compaq");
 DefaultMutableTreeNode nodeLaptopDell = new DefaultMutableTreeNode(" Dell");
 nodeLaptop.insert(nodeLaptopHp, 0);
 nodeLaptop.insert(nodeLaptopCq, 1);
 nodeLaptop.insert(nodeLaptopDell, 2);

 //*******************************
 DefaultMutableTreeNode nodeDesktop = new DefaultMutableTreeNode("Desktop");
 DefaultMutableTreeNode nodeDeskTopIBM = new DefaultMutableTreeNode("Desk-IBM");
 DefaultMutableTreeNode nodeDeskTopHp = new DefaultMutableTreeNode("Desk-HP");
 nodeDesktop.insert(nodeDeskTopIBM, 0);
 nodeDesktop.insert(nodeDeskTopHp, 1);
 root.add(nodeDesktop);
 //*****************************************
 DefaultMutableTreeNode nodeAccessories = new DefaultMutableTreeNode("Accessories");
 DefaultMutableTreeNode nodeKeyBoard = new DefaultMutableTreeNode("KeyBoard");
 DefaultMutableTreeNode nodeMornitor = new DefaultMutableTreeNode("Mornitor");
 DefaultMutableTreeNode nodeMouse = new DefaultMutableTreeNode("Mouse");
 DefaultMutableTreeNode nodeSpeaker = new DefaultMutableTreeNode("Speaker");

 nodeAccessories.insert(nodeKeyBoard, 0);
 nodeAccessories.insert(nodeMornitor, 1);
 nodeAccessories.insert(nodeMouse, 2);
 nodeAccessories.insert(nodeSpeaker, 3);

 root.add(nodeAccessories);
 DefaultMutableTreeNode nodeAssemble = new DefaultMutableTreeNode("Assemble");
 DefaultMutableTreeNode nodeMotherBoard = new DefaultMutableTreeNode("MotherBoard");

 DefaultMutableTreeNode nodeHardDisk = new DefaultMutableTreeNode("HardDisk");
 DefaultMutableTreeNode nodeVGA = new DefaultMutableTreeNode("VGA");
 DefaultMutableTreeNode nodeProcessor = new DefaultMutableTreeNode("Processor");
 DefaultMutableTreeNode nodeCasing = new DefaultMutableTreeNode("Casing");
 DefaultMutableTreeNode nodeRAM = new DefaultMutableTreeNode("RAM");

 nodeAssemble.insert(nodeMotherBoard, 0);
 nodeAssemble.insert(nodeHardDisk, 1);
 nodeAssemble.insert(nodeVGA, 2);
 nodeAssemble.insert(nodeProcessor, 3);
 nodeAssemble.insert(nodeRAM, 4);
 nodeAssemble.insert(nodeCasing, 5);

 root.add(nodeAssemble);

 //*******************************************

 JPanel jpnlTree = new JPanel();
 tree = new JTree(root);
 tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

 tree.addTreeSelectionListener(new MyTreeSelectionListener(this, buyer));

 jpnlTree.add(new JScrollPane(tree));
 jpnlTree.setBackground(Color.LIGHT_GRAY);
 jpnlTree.setSize(new Dimension(100, 500));
 listmodel = new DefaultListModel();
 purchaseProduct = new JList(listmodel);

 purchaseProduct.setPreferredSize(new Dimension(240, 490));
 purchaseProduct.setLayoutOrientation(JList.VERTICAL);
 purchaseProduct.setBorder(new LineBorder(Color.GRAY, 3));
 JPanel jpnlList = new JPanel(new FlowLayout(FlowLayout.CENTER, 40, 20));
 jpnlList.setBorder(new LineBorder(Color.DARK_GRAY, 3));

 jpnlList.setPreferredSize(new Dimension(265, JFrame.HEIGHT));
 JLabel lblPurchase = new JLabel("Your Cart");
 lblPurchase.setFont(new Font("Calibri", Font.BOLD, 15));
 lblPurchase.setForeground(Color.darkGray);
 JButton btnPurchase = new JButton("Purchase");
 btnPurchase.setActionCommand("Purchase");
 btnPurchase.addActionListener(new MyRemActionListener(this));

 jpnlList.add(lblPurchase);

 JScrollPane scrollPane = new JScrollPane(purchaseProduct);
 scrollPane.setPreferredSize(new Dimension(250, 490));
 jpnlList.add(scrollPane, BorderLayout.CENTER);

 //jpnlList.add(new JScrollPane(purchaseProduct));

 jpnlList.add(btnPurchase);
 this.lblAmount = new JLabel("here i am ");

 lblAmount.setFont(new Font("Calibri", Font.BOLD, 14));

 this.lblAmount = new JLabel();
 jpnlList.setBackground(Color.LIGHT_GRAY);

 jpnlAmount = new JPanel(new FlowLayout(FlowLayout.CENTER, 80, 40));
 jpnlAmount.add(lblAmount);
 jpnlAmount.setBorder(new LineBorder(Color.DARK_GRAY, 3));

 JPanel jpnlgreet = new JPanel();
 jpnlgreet.setBackground(Color.GREEN);
 JLabel lblGreet = new JLabel("WELCOME TO ECSE501 COMPUTERS ");
 lblGreet.setFont(new Font("Calibri", Font.BOLD, 16));
 jpnlgreet.add(lblGreet);
 JLabel lblBanner = new JLabel();
 lblBanner.setIcon(new ImageIcon("src//Images//Banner.jpg"));

 currentPanel.add(lblBanner, BorderLayout.CENTER);
 frame.getContentPane().add(jpnlList, BorderLayout.EAST);
 frame.getContentPane().add(currentPanel, BorderLayout.CENTER);
 frame.getContentPane().add(jpnlgreet, BorderLayout.NORTH);
 frame.getContentPane().setBackground(Color.WHITE);
 frame.getContentPane().add(jpnlTree, BorderLayout.WEST);
 frame.getContentPane().add(jpnlAmount, BorderLayout.PAGE_END);
 frame.setSize(1250, 900);
 frame.setVisible(true);

 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

 Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();

 // Determine the new location of the window
 int w = frame.getSize().width;
 int h = frame.getSize().height;
 int x = (dim.width - w) / 2;
 int y = (dim.height - h) / 2;

 // Move the window
 frame.setLocation(x, y);

 }
}

class MyTreeSelectionListener implements TreeSelectionListener {

 ProductSelection tr;
 User authUser;

 MyTreeSelectionListener(ProductSelection tr, User authUser) {
 this.tr = tr;
 this.authUser = authUser;

 }

 public void valueChanged(TreeSelectionEvent e) {

 try {
 if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("HP")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplLaptopHP);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 901);

 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Compaq")) {
 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplLaptopCQ);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1251, 901);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Dell")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplLaptopDell);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1251, 900);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Desk-IBM")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplDesktopHP);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1252, 902);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Desk-HP")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplDesktopIBM);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1253, 901);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("KeyBoard")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplKeyBoard);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1254, 900);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Mornitor")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplMornitor);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 905);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Mouse")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplMouse);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 906);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Speaker")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplSpeaker);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 907);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("MotherBoard")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplMotherBoard);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 910);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("HardDisk")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplHardDisk);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 901);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("VGA")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplVGA);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 902);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Processor")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplProcessor);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1250, 915);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("RAM")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplRAM);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1251, 901);
 } else if (tr.tree.getLastSelectedPathComponent().toString().trim().equals("Casing")) {

 tr.currentPanel.removeAll();
 tr.currentPanel.add(tr.jplCasing);
 tr.currentPanel.invalidate();
 tr.currentPanel.validate();
 tr.frame.setSize(1251, 902);
 }
 } catch (Exception ex) {
 }

 }
}

class MyRemActionListener implements ActionListener {

 ProductSelection prodSel;

 MyRemActionListener(ProductSelection prodSel) {
 this.prodSel = prodSel;
 }

 public void actionPerformed(ActionEvent e) {

 if (e.getActionCommand().equals("Purchase")) {
 if (!prodSel.listmodel.isEmpty()) {
 Object obj[] = {"Pay", "Back"};
 Object Pay[] = {"Credi Card", "Cash"};
 int showOptionObj = JOptionPane.showOptionDialog(null, "Please, select your Option", "Option", JOptionPane.YES_NO_OPTION, JOptionPane.OK_OPTION, null, obj, obj[0]);
 boolean isback = false;

 switch (showOptionObj) {
 case 0:
 prodSel.frame.setVisible(true);
 JOptionPane.showMessageDialog(null, "<html> Your Amount is " + prodSel.Amount + "</html>");
 //System.exit(0);
 break;
 case 1:
 prodSel.frame.setVisible(true);
 isback = true;
 break;
 default:
 System.exit(0);
 }

 if (!isback) {
 int showOptionPay = JOptionPane.showOptionDialog(null, "Please, select Payment Method", "Payment", JOptionPane.YES_NO_OPTION, JOptionPane.OK_OPTION, null, Pay, Pay[0]);

 switch (showOptionPay) {
 case 0:
 prodSel.frame.setVisible(true);
 JOptionPane.showInputDialog(null, "Enter Credit Card Number", "PayPal", JOptionPane.PLAIN_MESSAGE);
 JOptionPane.showMessageDialog(null, "Thank You! your items will be deliverd with in next two working days.", "Credited", JOptionPane.INFORMATION_MESSAGE);
 System.exit(0);
 break;
 case 1:
 prodSel.frame.setVisible(true);
 JOptionPane.showMessageDialog(null, "Thank You! your items will be deliverd with in next two working days.", "Receipt", JOptionPane.INFORMATION_MESSAGE);
 System.exit(0);
 break;
 default:
 System.exit(0);
 }
 }
 } else {
 JOptionPane.showMessageDialog(null, "Your Cart is Empty, Please select items to purchase", "Empty Cart", JOptionPane.ERROR_MESSAGE);
 }

 }

 }
}
package OnlineShop;
import java.util.ArrayList;

/**
*
* @author Roshan
*/

public class User {
 String password = "admin123";
 String loginName = "admin";

 ArrayList<Product> purchasedProducts = new ArrayList<Product>();

 protected String getPassword (){
 return this.password;
 }
 protected String getLoginName(){
 return this.loginName;
 }
}

1 comment:

UnknownMay 2, 2013 at 10:15 PM
Hi Roshan,

I have tried your example but i am getting " cannot find symbols " errors. Is this a working example.

Do you have program for Swings applications with using Vector method? I need that application urgently.. I you have can you please give me that prgram

Monday, January 3, 2011

java Shopping Cart with swing

1 comment: