1 Urgent doubt using filestream from JBuyout class!1!1!

C-Web. No surprise I guess. Going where? Pistons? Suns?

C-Web. No surprise I guess. Going where? Pistons?Suns?
Hadn't heard this, cotton.
http://sports.espn.go.com/nba/news/story?id=2726276
Suns? Good for Webber, but why do they need him?
Great team already.Yes but more inside presence never hurt. This is more my hope
>
Pistons? Help to replace Big Ben might be nice.
http://sports.espn.go.com/nba/news/story?id=2727137

Similar Messages

How do i use objects from one class in anohter?

Hey
I have two GUI classes ShowWhiteGUI and BasketGUI and then a control class ShowWhite. The control class calls all the method from anohter class's which the GUI classes are gonna use.
The basis idea with this script is it shall be a very very simpel Shop. Where you can add items to a basket and then show the items in a new window(BasketGUI).
So here is the problem. I cant create an object in both GUI classes, because then im working with two sets of data, right? So how do i do this?
Here is my code:
ShowWhiteGUI
* ShowWhiteGUI.java
* Created on 5. februar 2008, 10:43
package userclasses;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
* @author Lille mus
public class ShowWhiteGUI extends javax.swing.JFrame {
    private BasketGUI basketGUI;
    private ShowWhite control;
    /** Creates new form ShowWhiteGUI */
    public ShowWhiteGUI() {
        basketGUI = new BasketGUI();
        control = new ShowWhite();
        initComponents();
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        aboutDialog = new javax.swing.JDialog();
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        itemIdField = new javax.swing.JTextField();
        productIdLabel = new javax.swing.JLabel();
        numberOfItems = new javax.swing.JLabel();
        productId = new javax.swing.JTextField();
        basketButton = new javax.swing.JButton();
        jLabel2 = new javax.swing.JLabel();
        showBasketButton = new javax.swing.JButton();
        jMenuBar1 = new javax.swing.JMenuBar();
        menu = new javax.swing.JMenu();
        jMenu1 = new javax.swing.JMenu();
        open = new javax.swing.JMenuItem();
        quit = new javax.swing.JMenuItem();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        help = new javax.swing.JMenuItem();
        about = new javax.swing.JMenuItem();
        javax.swing.GroupLayout aboutDialogLayout = new javax.swing.GroupLayout(aboutDialog.getContentPane());
        aboutDialog.getContentPane().setLayout(aboutDialogLayout);
        aboutDialogLayout.setHorizontalGroup(
            aboutDialogLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
        aboutDialogLayout.setVerticalGroup(
            aboutDialogLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Show White's Shop");
        setBackground(new java.awt.Color(0, 102, 255));
        jLabel1.setFont(new java.awt.Font("Baby Kruffy", 0, 36));
        jLabel1.setText("Snow White?s Shop");
        jTextArea1.setColumns(20);
        jTextArea1.setEditable(false);
        jTextArea1.setRows(5);
        jTextArea1.setText(control.getPrintAllStockItems());
        jScrollPane1.setViewportView(jTextArea1);
        productIdLabel.setText("Varenummer:");
        numberOfItems.setText("Antal:");
        basketButton.setText("L?g i kurv");
        basketButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                putInBasket(evt);
        showBasketButton.setText("Vis indk?bskurv");
        showBasketButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                showBasket(evt);
        menu.setLabel("Fil");
        jMenu1.setText("Menu");
        menu.add(jMenu1);
        open.setLabel("?bn");
        open.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                open(evt);
        menu.add(open);
        quit.setLabel("Luk");
        quit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                quit(evt);
        menu.add(quit);
        jMenuItem1.setLabel("Gem");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                save(evt);
        menu.add(jMenuItem1);
        jMenuBar1.add(menu);
        jMenu2.setLabel("Hj?lp");
        help.setLabel("Hj?lp");
        help.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                help(evt);
        jMenu2.add(help);
        about.setLabel("Om Show White Shop");
        jMenu2.add(about);
        jMenuBar1.add(jMenu2);
        setJMenuBar(jMenuBar1);
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(37, 37, 37)
                        .addComponent(jLabel1))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                                .addComponent(productIdLabel)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addComponent(numberOfItems))
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 184, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                .addGroup(layout.createSequentialGroup()
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                    .addComponent(productId, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 65, Short.MAX_VALUE)
                                    .addComponent(basketButton))
                                .addGroup(layout.createSequentialGroup()
                                    .addGap(31, 31, 31)
                                    .addComponent(jLabel2)))
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(showBasketButton)))))
                .addContainerGap())
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 179, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel2))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 49, Short.MAX_VALUE)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(productIdLabel)
                            .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(numberOfItems)
                            .addComponent(productId, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(showBasketButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 202, Short.MAX_VALUE)
                        .addComponent(basketButton)))
                .addContainerGap())
        pack();
    }// </editor-fold>
    public void createBasketWindow(){
        basketGUI.setVisible(true);
    private void showBasket(java.awt.event.ActionEvent evt) {
        createBasketWindow();
    private void putInBasket(java.awt.event.ActionEvent evt) {
        Integer itemId = Integer.parseInt(itemIdField.getText());
        String petToAdd = control.getFindItem(itemId);
        System.out.println(petToAdd);
        control.setAddItemToBasket(itemId);
        basketGUI.addPetToBasket(petToAdd);
    private void help(java.awt.event.ActionEvent evt) {
    private void save(java.awt.event.ActionEvent evt) {
        System.out.println("Gemmer fil");
    private void open(java.awt.event.ActionEvent evt) {
        System.out.println("?bn fil");
    private void quit(java.awt.event.ActionEvent evt) {
        System.exit(0);
    public ShowWhite getControl(){
        return control;
     * @param args the command line arguments
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new ShowWhiteGUI().setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JMenuItem about;
    private javax.swing.JDialog aboutDialog;
    private javax.swing.JButton basketButton;
    private javax.swing.JMenuItem help;
    private javax.swing.JTextField itemIdField;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JMenu menu;
    private javax.swing.JLabel numberOfItems;
    private javax.swing.JMenuItem open;
    private javax.swing.JTextField productId;
    private javax.swing.JLabel productIdLabel;
    private javax.swing.JMenuItem quit;
    private javax.swing.JButton showBasketButton;
    // End of variables declaration
}BasketGUI:
* Basket.java
* Created on 5. februar 2008, 15:29
package userclasses;
import javax.swing.JTextArea;
* @author Lille mus
public class BasketGUI extends javax.swing.JFrame {
    private String newline = "\n";
    private InvoiceGUI invoiceGUI;
    /** Creates new form Basket */
    public BasketGUI() {
        initComponents();
        //invoiceGUI = new InvoiceGUI();
    public void addPetToBasket(String pet){
        jTextArea1.append(pet+newline);
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jButton1 = new javax.swing.JButton();
        itemIdField = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        removeItemButton = new javax.swing.JButton();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Indk?bskurv");
        jLabel1.setText("Indk?bskurv");
        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);
        jButton1.setText("K?b og print kvittering");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                printInvoice(evt);
        jLabel2.setText("Slet varenr");
        removeItemButton.setText("Slet");
        removeItemButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                removeItemFromBasket(evt);
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(21, 21, 21)
                        .addComponent(jLabel1))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 141, Short.MAX_VALUE)
                                .addComponent(jButton1))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(removeItemButton)))))
                .addContainerGap())
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addGap(20, 20, 20)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jButton1)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 125, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(removeItemButton))
                .addContainerGap())
        pack();
    }// </editor-fold>
    private void removeItemFromBasket(java.awt.event.ActionEvent evt) {
        Integer itemId = Integer.parseInt(itemIdField.getText());
    private void printInvoice(java.awt.event.ActionEvent evt) {
        //invoiceGUI.setVisible(true);
    public JTextArea getTextArea(){
        return jTextArea1;
     * @param args the command line arguments
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new BasketGUI().setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JTextField itemIdField;
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JButton removeItemButton;
    // End of variables declaration
}ShowWhite:
* ShowWhite.java
* Created on 13. februar 2008, 18:15
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package userclasses;
* @author Lille mus
public class ShowWhite {
    public Basket basket;
    public Stock stock;
    /** Creates a new instance of ShowWhite */
    public ShowWhite() {
        stock = new Stock();
        basket = new Basket();
    public String getFindItem(int itemId){
        String returnItem = stock.findItem(itemId);
        return returnItem;
    public void setAddItemToBasket(int itemId){
        basket.addItemToBasket(itemId);
    public String getPrintAllStockItems(){
        return stock.printAllStockItems();
    public String getShowBasket(){
         return basket.showBasket();
    public void setRemoveItemFromBasket(int itemId){
        basket.removeItemFromBasket(itemId);
}

okay i tried this, but it give me a nullpointerexeption:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at userclasses.ShowWhiteGUI.initComponents(ShowWhiteGUI.java:75)
at userclasses.ShowWhiteGUI.<init>(ShowWhiteGUI.java:21)
at userclasses.ShowWhite.<init>(ShowWhite.java:26)
at userclasses.Main.<init>(Main.java:16)
at userclasses.Main$1.run(Main.java:31)
ShowWhite
public class ShowWhite {
    public Basket basket;
    public Stock stock;
    private ShowWhiteGUI mainGUI;
    private BasketGUI basketGUI;
    /** Creates a new instance of ShowWhite */
    public ShowWhite() {
        stock = new Stock();
        basket = new Basket();
        mainGUI = new ShowWhiteGUI(this);
        basketGUI = new BasketGUI();
    public String getFindItem(int itemId){
        String returnItem = stock.findItem(itemId);
        return returnItem;
    public void setAddItemToBasket(int itemId){
        basket.addItemToBasket(itemId);
    public String getPrintAllStockItems(){
        return stock.printAllStockItems();
    public String getShowBasket(){
         return basket.showBasket();
    public void setRemoveItemFromBasket(int itemId){
        basket.removeItemFromBasket(itemId);
    public void createMainGUI(){
        mainGUI.setVisible(true);
    public BasketGUI getBasketGUI(){
        return basketGUI;
    public void setAddPetToBasket(String pet){
        basketGUI.addPetToBasket(pet);
}ShowWhiteGUI:
public class ShowWhiteGUI extends javax.swing.JFrame {
    private ShowWhite control;
    /** Creates new form ShowWhiteGUI */
    public ShowWhiteGUI(ShowWhite control) {
        initComponents();
        this.control = control;
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        aboutDialog = new javax.swing.JDialog();
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        itemIdField = new javax.swing.JTextField();
        productIdLabel = new javax.swing.JLabel();
        numberOfItems = new javax.swing.JLabel();
        productId = new javax.swing.JTextField();
        basketButton = new javax.swing.JButton();
        jLabel2 = new javax.swing.JLabel();
        showBasketButton = new javax.swing.JButton();
        jMenuBar1 = new javax.swing.JMenuBar();
        menu = new javax.swing.JMenu();
        jMenu1 = new javax.swing.JMenu();
        open = new javax.swing.JMenuItem();
        quit = new javax.swing.JMenuItem();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        help = new javax.swing.JMenuItem();
        about = new javax.swing.JMenuItem();
        javax.swing.GroupLayout aboutDialogLayout = new javax.swing.GroupLayout(aboutDialog.getContentPane());
        aboutDialog.getContentPane().setLayout(aboutDialogLayout);
        aboutDialogLayout.setHorizontalGroup(
            aboutDialogLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
        aboutDialogLayout.setVerticalGroup(
            aboutDialogLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Show White's Shop");
        setBackground(new java.awt.Color(0, 102, 255));
        jLabel1.setFont(new java.awt.Font("Baby Kruffy", 0, 36));
        jLabel1.setText("Snow White?s Shop");
        jTextArea1.setColumns(20);
        jTextArea1.setEditable(false);
        jTextArea1.setRows(5);
        jTextArea1.setText(control.getPrintAllStockItems());
        jScrollPane1.setViewportView(jTextArea1);
        productIdLabel.setText("Varenummer:");
        numberOfItems.setText("Antal:");
        basketButton.setText("L?g i kurv");
        basketButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                putInBasket(evt);
        showBasketButton.setText("Vis indk?bskurv");
        showBasketButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                showBasket(evt);
        menu.setLabel("Fil");
        jMenu1.setText("Menu");
        menu.add(jMenu1);
        open.setLabel("?bn");
        open.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                open(evt);
        menu.add(open);
        quit.setLabel("Luk");
        quit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                quit(evt);
        menu.add(quit);
        jMenuItem1.setLabel("Gem");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                save(evt);
        menu.add(jMenuItem1);
        jMenuBar1.add(menu);
        jMenu2.setLabel("Hj?lp");
        help.setLabel("Hj?lp");
        help.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                help(evt);
        jMenu2.add(help);
        about.setLabel("Om Show White Shop");
        jMenu2.add(about);
        jMenuBar1.add(jMenu2);
        setJMenuBar(jMenuBar1);
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(37, 37, 37)
                        .addComponent(jLabel1))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                                .addComponent(productIdLabel)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addComponent(numberOfItems))
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 184, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                .addGroup(layout.createSequentialGroup()
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                    .addComponent(productId, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 65, Short.MAX_VALUE)
                                    .addComponent(basketButton))
                                .addGroup(layout.createSequentialGroup()
                                    .addGap(31, 31, 31)
                                    .addComponent(jLabel2)))
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(showBasketButton)))))
                .addContainerGap())
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 179, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel2))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 49, Short.MAX_VALUE)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(productIdLabel)
                            .addComponent(itemIdField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(numberOfItems)
                            .addComponent(productId, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(showBasketButton)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 202, Short.MAX_VALUE)
                        .addComponent(basketButton)))
                .addContainerGap())
        pack();
    }// </editor-fold>
    public void createBasketWindow(){
        control.getBasketGUI().setVisible(true);
    private void showBasket(java.awt.event.ActionEvent evt) {
        createBasketWindow();
    private void putInBasket(java.awt.event.ActionEvent evt) {
        Integer itemId = Integer.parseInt(itemIdField.getText());
        String petToAdd = control.getFindItem(itemId);
        System.out.println(petToAdd);
        control.setAddItemToBasket(itemId);
        control.setAddPetToBasket(petToAdd);
    private void help(java.awt.event.ActionEvent evt) {
    private void save(java.awt.event.ActionEvent evt) {
        System.out.println("Gemmer fil");
    private void open(java.awt.event.ActionEvent evt) {
        System.out.println("?bn fil");
    private void quit(java.awt.event.ActionEvent evt) {
        System.exit(0);
    public ShowWhite getControl(){
        return control;
    // Variables declaration - do not modify
    private javax.swing.JMenuItem about;
    private javax.swing.JDialog aboutDialog;
    private javax.swing.JButton basketButton;
    private javax.swing.JMenuItem help;
    private javax.swing.JTextField itemIdField;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JMenu menu;
    private javax.swing.JLabel numberOfItems;
    private javax.swing.JMenuItem open;
    private javax.swing.JTextField productId;
    private javax.swing.JLabel productIdLabel;
    private javax.swing.JMenuItem quit;
    private javax.swing.JButton showBasketButton;
    // End of variables declaration
}

Use method from father class for event

Hi,
I want to use a preDelete event in my class, but the method I would like to call for the event is not in the class itself, but in the (abstract) predecessor class. Any chance to do this? At the moment I can't select the method in the event tab page (it's not in the list to choose from ...)
Thank you!
J.F.

In 9.0.4 you will need to add the parent class as a descriptor and choose to deactivate it. This will allow you to choose methods from that class in the subclass descriptors.
In 10.1.3 there is a dialog for specifying classes that are not persistent, but necessary in other persistent classes: http://www.oracle.com/technology/products/ias/toplink/doc/1013/main/_html/mw007.htm#sthref629
A good explanation of why we don't store the parent and referenced classes unless explictly asked can be found here: Re: Mapping Workbench 10.1.3.0 Bug - Cannot add Implemented Interfaces
Hope this helps,
Karen

Load xml file using gerResource() from a class in jar

Hi,
I have a jar file. I set the classpath for the jar.
I have an xml file in the directory of jar.
ex: /example/test.jar (jar file)
/example/test/test.xml
I would like to load the xml file by using a class in the jar file like:
URL url = Test.class.getResource("/example/test/test.xml");
Test.class is in the jar.
But it is not loading and giving URL as null.
I couldnot figure out how to load any file outside of the jar file from a class file in the jar.
Any solution can be appreciated.
Thanx in advance.
Sridhar

Try
URL url = ClassLoader.getSystemResource ("/example/test/test.xml");

Using HashMaps from another class

I'm trying to use a HashMap to store a person with a given Id. When i create a HashMap as part of a main method and use the put method on that HashMap everything goes fine ie:
Map myMap = new HashMap();
Person james = new Person)("James", "Smith");
myMap.put(1,james);However, when I use a HashMap as part of one class and attempt to call it in another using a simple add method I get a null pointer exception. For example, I have the class People which is basically:
import java.util.*;
public class People
    private Map myPeople;
    public People()
        Map myPeople = new HashMap();
    public void addPerson(int id, Person p)
        PeopleTable.put(id,p);
}I then make a call to this using a separate main method
Person james = new Person ("James","Smith");
People myFamily = new myFamily();
myFamily.addPerson(1,james);but get a null pointer exception. I can't see anything glaringly obvious that i'm getting wrong, but i've just started using HashMaps so I may be missing something.
Any insight would be greatly appreciated!
Thanks,
Nick

nickd_101 wrote:
However, when I use a HashMap as part of one class and attempt to call it in another using a simple add method I get a null pointer exception. For example, I have the class People which is basically:
import java.util.*;
public class People
private Map myPeople;
public People()
Map myPeople = new HashMap(); //*** You're declaring the map again here, don't do this.
public void addPerson(int id, Person p)
PeopleTable.put(id,p);
You're declaring the map twice, once at the top of the class, which is good, and once again in the constructor, which is very bad since the class's hashmap never gets constructed. Don't do this.
The constructor should be:
    public People()
        myPeople = new HashMap(); // ** better
    }

Trouble using exists() from File Class

I'm trying to have the user input a filename, and then I'm storing the filename in a file object called childFile.
I'm having trouble with the conditional and boolean statements. The screen should print "I'm real" if the file exists, but it doesn't. It prints I don't exist every time, no matter what the user inputs.
I really appreciate any help.
import java.io.*;
import java.util.Scanner;
public class FileObject {
     public static void main(String[] args)
     throws java.io.IOException
          //boolean childFile.exists() = true;
          Scanner keyboard = new Scanner( System.in );
          System.out.print("Please enter the name of an existing file: ");
          String input = keyboard.nextLine().trim();
          File childFile = new File (input);
          File parentFile = new File( childFile.getCanonicalFile().getParent() );
          boolean exists = childFile.exists();
          if (exists)
               System.out.println("I'm real.");
          else
               System.out.println("I don't exist");
          System.out.println(childFile);
          System.out.println(parentFile);
          //displayFiles(list.listFiles(), indent + " ");
     //void displayFiles(File[]list, String indent) {

Use File.getAbsolutePath() to make sure your file is actually pointing where you think it's pointing

Retrieve used interface from implementation class

Hi to everyboby
I have a remoteObject that implement 2 interface (I1, I2). These interfaces are child of common father interface (I0).
This remote object is received unmarshalled and casted to one of the to directly implemented interface I1 or I2,
After that I want to execute a method declared into the interface I0 on the server side, that prints out the name of the interface used during casting after the unmarshall operation on the client side.
How can I retrieve the name of the current interface used to refer the object into the client side, from the server side?
Anyone as suggestions?
thank you very much
Edited by: dj3mb3 on Jun 10, 2010 5:49 AM

I'll try to explain in a better way ...
I have a server with 2 different client and each client communicate to the server with a different interface.
My needs are to recognize from the server, the type of the client that are operating, and to do this I was thinking to recognize the interface used from the client to interact with the server
An other option is that, from the client, after retrieving the server and it's cast, a can call a method to pass to the server object, the type of the interface actually used.
But I think this makes a bit of nonsense because When I receive the marshalled object in my opinion doesn't make sense that i have to say the object it's type (the interface used).
the object is already alive and I think it has to know the interface used to refer it even if is on another VM
The cast operation doesn't store nothing into the current object instance?
local code example (I don't know if with JRMI the situation is different because the different JVM)
Map foo = new HashTable();
I need a method like
foo.curretUsedInterface() ... that return "Map"
instead of
foo.getClass().getName() that return "HashMap"
It's possible to obtain this information or I have to try another idea to make the server distinguish the client type?
thank you very much for your comprehension

Accessing the same object from multiple classes.

For the life of me I can't workout how I can access things from classes that haven't created them.
I don't want to have to use "new" multiple times in seperate classes as that would erase manipulated values.
I want to be able to access and manipulate an array of objects from multiple classes without resetting the array object values. How do I create a new object then be able to use it from all classes rather than re-creating it?
Also I need my GUI to recognize the changes my buttons are making to data and reload itself so they show up.
All help is good help!
regards,
Luke Grainger

As long as you have a headquarters it shouldn't be to painfull. You simply keep a refrence to your ShipDataBase and Arsenal and all your irrellevant stuff in Headquarters. So the start of your Headquarters class would look something like:
public class Headquarters{
public Arsenal arsenal;
public ShipDatabase db;
//constructor
public Headquarters(){
    arsenal = new Arsenal(this, ....);
    db = new ShipDatabase(...);
//The Arsenal class:
public class Arsenal{
public Headquarter hq;
public Arsenal(Headquarter hq, ....){
    this.hq = hq;
    .Then in your ShipDatabase you should, as good programing goes, keep the arraylist as a private class variable, and then make simple public methods to access it. Methods like getShipList(), addToShipList(Ship ship)....
So when you want to add a ship from arsenal you write:
hq.db.addToShipList(ship);
.Or you could of course use a more direct refrence:
ShipDatabase db = hq.db;
or even
ShipList = hq.db.getShipList();
but this requires that the shiplist in the DB is kept public....
Hope it was comprehensive enough, and that I answered what you where wondering.
Sjur
PS: Initialise the array is what you do right here:
//constructor
shipList = new Ship[6];
shipList[0] = new Ship("Sentry", 15, 10, "Scout");
" " " "etc
shipList[5] = new Ship("Sentry", 15, 10, "Scout");PPS: To make code snippets etc. more readable please read this article:
http://forum.java.sun.com/faq.jsp#messageformat

Calling Console Application that uses WebBrowser from SQL Server - Not Running

Hi there. I am working in a program automation that needs to get files from a website and put it in a database. It is done but as I need a console application and need webbrowser that comes from Windows Forms, I am trying to call it from the SQL Server using
the xp_cmdshell but when it runs the .exe, it execute the block that is before the Application.Run() command but when it reaches this line, it stay running on Task manager but it not execute my code. How can I fix this? I had first created a Windows form application
but it was not working anyway and then I tried a console application and then I use the [STAThread] and Application.Run(). At least it runs the file from SQL Server but is not executing all my code, I think that it stops on Application.Run() line. Any help
will be very useful.
Thanks for now.

Thanks for the response. What I mean is that it just run the part of the code that is just using the Console, that's the code:
// Main Method
[STAThread]
public static void Main()
clearDatabase(myConnection);
Console.Title = "Suframa Itens Robot";
//If log file exists, it is deleted
if ( File.Exists(@"suframaLog.txt") )
File.Delete(@"suframaLog.txt");
wb.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(loginWebsite);
try
//It is called as the program uses the WebBrowser Class from Windows Forms namespace
//and it is a console Application
Application.Run();
catch ( Exception ex )
Log(ex.Message);
As you can see, I call a function on start named ClearDatabase, when I call the file from sql server it executes, the tables are cleared, but what I think is that the problem stop when reach the line Application.Run() as it is the line that allows the remaining
code to execute as it uses events from WebBrowser class.
It is a program automation that needs to get a lot of files from a website that needs login and read line by line from the files and put on server, if I call it from the executable it runs fine, the only problem is when calling from SQL Server, Do you know
how to fix this?
Thanks.

Delete scroller from other class

Hi.
I have FlashSite class where after clicking to button i see page with text and with scroll.
If i click to 'close' button i want removeChild this page, text and scroll.
But for scroll i use code from other class. (i insert this class like: import classes.Scroller.*;)
So, how i can remove this scroller?
code:
public function lilyContent():void
               // create a sample pane
               addChild(lilyPageScroll);
               lilyPageScroll.x = 360;
               lilyPageScroll.y = 400;
               // then attach a new scroller to the pane
               var lilyScroller = new Scroller(lilyPageScroll, lilyPageScroll.width, 540, new scrollerFace(),"vertical");
i use this line:
var lilyScroller = new Scroller(lilyPageScroll, lilyPageScroll.width, 540, new scrollerFace(),"vertical");
to add scroller.
all code for FlashSite class:
package
     import flash.display.*;
     import flash.text.*;
     import flash.events.*;
     import classes.Scroller.*;
     public class FlashSite extends MovieClip
          var lilyDeskBack:LilyDescriptionBackground = new LilyDescriptionBackground();
          var lilyPageScroll = new LilyContent();
          //constructor
          public function FlashSite()
               stop();
               addEventListener(Event.ENTER_FRAME, flashSiteLoading);
          public function flashSiteLoading(event:Event)
               var mcBytesLoaded:int=this.root.loaderInfo.bytesLoaded;
               var mcBytesTotal:int=this.root.loaderInfo.bytesTotal;
               var mcKLoaded:int=mcBytesLoaded/1024;
               var mcKTotal:int=mcBytesTotal/1024;
               flashSiteLoading_txt.text="Loading: "+mcKLoaded+"Kb of "+mcKTotal+"Kb";
               if (mcBytesLoaded>=mcBytesTotal)
                    removeEventListener(Event.ENTER_FRAME, flashSiteLoading);
                    gotoAndPlay('welcomeSite');
                    lilyBtn.addEventListener(MouseEvent.CLICK, lilyDescription);
                    roseBtn.addEventListener(MouseEvent.CLICK, roseDescription);
                    jasmineBtn.addEventListener(MouseEvent.CLICK, jasmineDescription);
                    irisBtn.addEventListener(MouseEvent.CLICK, irisDescription);
          public function lilyDescription(event:MouseEvent):void
               trace("Lily description goes here.");
               roseBtn.visible = false;
               jasmineBtn.visible = false;
               irisBtn.visible = false;
               addChild(lilyDeskBack);
               lilyDeskBack.x = 350;
               lilyDeskBack.y = 330;
               lilyContent();
               lilyDeskBack.LilyDesckClose_btn.addEventListener(MouseEvent.CLICK, closeLilyDescription);
          public function closeLilyDescription(event:MouseEvent):void
               trace("close Lily description");
               removeChild(lilyDeskBack);
               removeChild(lilyPageScroll);
               lilyScroller.visible = false;
               roseBtn.visible = true;
               jasmineBtn.visible = true;
               irisBtn.visible = true;
          public function roseDescription(event:MouseEvent):void
               trace("Rose description goes here.");
          public function jasmineDescription(event:MouseEvent):void
               trace("Jasmine description goes here.");
          public function irisDescription(event:MouseEvent):void
               trace("Iris description goes here.");
          public function lilyContent():void
               // create a sample pane
               addChild(lilyPageScroll);
               lilyPageScroll.x = 360;
               lilyPageScroll.y = 400;
               // then attach a new scroller to the pane
               var lilyScroller = new Scroller(lilyPageScroll, lilyPageScroll.width, 540, new scrollerFace(),"vertical");
Thanks for help

Make the lilyScroller object a class level object.
Add to 'closeLilyDescription' method 'removeChild(lilyScroller);'
package
     import flash.display.*;
     import flash.text.*;
     import flash.events.*;
     import classes.Scroller.*;
     public class FlashSite extends MovieClip
          var lilyDeskBack:LilyDescriptionBackground = new LilyDescriptionBackground();
          var lilyPageScroll = new LilyContent();
          var lilyScroller;
          //constructor
          public function FlashSite()
               stop();
               addEventListener(Event.ENTER_FRAME, flashSiteLoading);
          public function flashSiteLoading(event:Event)
               var mcBytesLoaded:int=this.root.loaderInfo.bytesLoaded;
               var mcBytesTotal:int=this.root.loaderInfo.bytesTotal;
               var mcKLoaded:int=mcBytesLoaded/1024;
               var mcKTotal:int=mcBytesTotal/1024;
               flashSiteLoading_txt.text="Loading: "+mcKLoaded+"Kb of "+mcKTotal+"Kb";
               if (mcBytesLoaded>=mcBytesTotal)
                    removeEventListener(Event.ENTER_FRAME, flashSiteLoading);
                    gotoAndPlay('welcomeSite');
                    lilyBtn.addEventListener(MouseEvent.CLICK, lilyDescription);
                    roseBtn.addEventListener(MouseEvent.CLICK, roseDescription);
                    jasmineBtn.addEventListener(MouseEvent.CLICK, jasmineDescription);
                    irisBtn.addEventListener(MouseEvent.CLICK, irisDescription);
          public function lilyDescription(event:MouseEvent):void
               trace("Lily description goes here.");
               roseBtn.visible = false;
               jasmineBtn.visible = false;
               irisBtn.visible = false;
               addChild(lilyDeskBack);
               lilyDeskBack.x = 350;
               lilyDeskBack.y = 330;
               lilyContent();
               lilyDeskBack.LilyDesckClose_btn.addEventListener(MouseEvent.CLICK, closeLilyDescription);
          public function closeLilyDescription(event:MouseEvent):void
               trace("close Lily description");
               removeChild(lilyDeskBack);
               removeChild(lilyPageScroll);
               removeChild(lilyScroller);
               lilyScroller.visible = false;
               roseBtn.visible = true;
               jasmineBtn.visible = true;
               irisBtn.visible = true;
          public function roseDescription(event:MouseEvent):void
               trace("Rose description goes here.");
          public function jasmineDescription(event:MouseEvent):void
               trace("Jasmine description goes here.");
          public function irisDescription(event:MouseEvent):void
               trace("Iris description goes here.");
          public function lilyContent():void
               // create a sample pane
               addChild(lilyPageScroll);
               lilyPageScroll.x = 360;
               lilyPageScroll.y = 400;
               // then attach a new scroller to the pane
               lilyScroller = new Scroller(lilyPageScroll, lilyPageScroll.width, 540, new scrollerFace(),"vertical");

Stupid question - method missing from Socket class

I'm sure I am just missing something here. I am using getInputStream from Socket class successfully - now want to add setKeepAlive method - I am getting an error:
Method setKeepAlive(boolean) not found in class java.net.Socket.
client.setKeepAlive(true);
client is defined as a Socket
Socket client = origSocket.accept();
What am I screwing up here?? I know the classpath is correct since I am and have been using getInputStream with this socket for months!!
Thanks for any responses!
Beth

javac is the compiler, not the run-time. That would have nothing to do with what the classpath is at run-time, which would either be the system environment variable CLASSPATH, or the -cp command-line parameter to java, not javac.

Use methods in other classes

Can I use methods from other classes than the class that myClass extends?
ex. myClass extends parentClass{
myMethod()
myMethod() is declared in i third class. Is this possible or can I only use classes from the parent class?
-Thanks-

I'm not really sure what the previous two answers were getting at.
Yes, you can use methods all the way up the class hierarchy, as long as they are visible.
For example, Object implements toString(). You can call toString() on any object in Java and it will render the object to a string in one way or another. That is because toString() is public.
If toString() were protected, you would only be able to call the method if you were a subclass of of that object (or in the same package), which would make the toString() method much less useful.
I would suggest reading up on the differences in the four visibility modifiers (private, (default), protected, and public). Private is the only one which nothing else can call. If you are public or protected, any subclass can call the method, even if there are 20 superclasses between the implementor and the caller.
Good luck!
Steve

Using a variable from one class in another

For learning purposes, I thought I'd have a stab at making a role-playing RPG.
The first class I made was the Player class;
public class Player
     public static void main(String[] args)
          // [0] being base points and [1] being skill points
          int[] points = {50, 10};
          // Elements in statNames are relevent to stats, so stats[0] is health, and so on
          String[] statNames = {"Health", "Mana", "Attack", "Magic", "Craft"};
          int[] stats = new int[5];
     public static String setName()
          Scanner input = new Scanner(System.in);
          System.out.print("Character name: ");
          String name = input.nextLine();
          return name;
     public static void setHealth(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Health (" + points[0] + " base points remanining): ");
          stats[0] = input.nextInt();
          points[0] -= stats[0];
        public static void setMana(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Mana (" + points[0] + " base points remanining): ");
          stats[1] = input.nextInt();
          points[0] -= stats[1];
     public static void setAttack(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Attack (" + points[1] + " skill points remanining): ");
          stats[2] = input.nextInt();
          points[1] -= stats[2];
     public static void setMagic(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Magic (" + points[1] + " skill points remanining): ");
          stats[3] = input.nextInt();
          points[1] -= stats[3];
     public static void setCraft(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Craft (" + points[1] + " skill points remanining): ");
          stats[4] = input.nextInt();
          points[1] -= stats[4];
     public static void setStats(int[] points, int[] stats)
          setHealth(points, stats);
          setMana(points, stats);
          setAttack(points, stats);
          setMagic(points, stats);
          setCraft(points, stats);
     public static void charSummary(String name, String[] statNames, int[] stats)
          System.out.println("\n------ " + name);
          for(int index = 0; index < stats.length; index++)
               System.out.println(statNames[index] + ":\t" + stats[index]);
}And that would be used in the Play class;
public class Play
     public static void main(String[] args)
          Player player = new Player();
          String name = player.setName();
          player.setStats(points, stats);
     }     But I'm not sure how the Play class will get the arrays from the Player class. I tried simply putting public in front of the them, for example;
public String[] statNames = {"Health", "Mana", "Attack", "Magic", "Craft"};But I get an illegal start of expression error.
I may have taken the wrong approach to this all together, I'm completely new, so feel free to suggest anything else. Sorry for any ambiguity.
Edited by: xcd on Jan 6, 2010 8:12 AM
Edited by: xcd on Jan 6, 2010 8:12 AM

HI XCD ,
what about making Player class as
public class Player
          // [0] being base points and [1] being skill points
          int[] points = {50, 10};
          // Elements in statNames are relevent to stats, so stats[0] is health, and so on
          public String[] statNames = {"Health", "Mana", "Attack", "Magic", "Craft"};
          int[] stats = new int[5];
     public String setName()
          Scanner input = new Scanner(System.in);
          System.out.print("Character name: ");
          String name = input.nextLine();
          return name;
     public void setHealth(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Health (" + points[0] + " base points remanining): ");
          stats[0] = input.nextInt();
          points[0] -= stats[0];
        public void setMana(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Mana (" + points[0] + " base points remanining): ");
          stats[1] = input.nextInt();
          points[0] -= stats[1];
     public void setAttack(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Attack (" + points[1] + " skill points remanining): ");
          stats[2] = input.nextInt();
          points[1] -= stats[2];
     public void setMagic(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Magic (" + points[1] + " skill points remanining): ");
          stats[3] = input.nextInt();
          points[1] -= stats[3];
     public void setCraft(int[] points, int[] stats)
          Scanner input = new Scanner(System.in);
          System.out.print("Craft (" + points[1] + " skill points remanining): ");
          stats[4] = input.nextInt();
          points[1] -= stats[4];
     public void setStats(int[] points, int[] stats)
          setHealth(points, stats);
          setMana(points, stats);
          setAttack(points, stats);
          setMagic(points, stats);
          setCraft(points, stats);
     public void charSummary(String name, String[] statNames, int[] stats)
          System.out.println("\n------ " + name);
          for(int index = 0; index < stats.length; index++)
               System.out.println(statNames[index] + ":\t" + stats[index]);
     }and Play class
public class Play
     public static void main(String[] args)
          Player player = new Player();
          String name = player.setName();
          player.setStats(points, stats);
     }Now you can access names , you can't assign keyword to variable into method scope , make it class variable .
Hope it help :)

Using Variables/Arrays from one class in another

Hello all,
First, to explain what I am attempting to create, is a program that will accept input of employee names and hours worked into an array. The first class will accept a command line argument when invoked. If the argument is correct, it will call another class that will gather information from the user via an input box. After all names and hours have been input for employees, this class will calculate the salary based upon the first letter of each employee name and print the total hours, salary, etc. for each employee.
What I need to do now is to split the second class into two: one that will gather the data and another that will calculate and print the data. Yes, this is an assignment. However, I am trying to learn and I have gotten this far, but I am stuck on how to get a class to be able to use an array/variables from another class.
I realize the below code isn't exactly cleaned up...yet.
Code for AverageSalaryGather class:
import javax.swing.JOptionPane; // uses class JOptionPane
import java.lang.reflect.Array;
import java.math.*;
public class AverageSalaryGather {
     public static void gatherData() {
          char[] alphaArray = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','x','y','z'};
          String[][] empInfoArray = new String[100][4];
          String[] empNameArray = new String[100];
          String finalOutput = "Name - Rate - Hours - Total Pay\n";
          String averageHoursOutput = "Average Hours Worked:\n";
          String averageSalaryOutput = "Average Hourly Salary:\n";
          String averageGroupSalaryOutput = "Average Group Salary:\n";
                    String[] rateArray = new String[26];
                    char empNameChar = 'a';
          int empRate = 0;
          int payRate = 0;
                    for (int i = 0; i < 26; i++) {
               payRate = i + 5;
               rateArray[i] = Integer.toString(payRate);
                    int countJoo = 0;
          while (true) {
               String namePrompt = "Please enter the employee name: ";
               String empName = JOptionPane.showInputDialog(namePrompt);
                              if (empName == null | empName.equals("")) {
                    break;
               else {
                    empInfoArray[countJoo][0] = empName;
                    for (int i = 0; i < alphaArray.length; i++) {
                         empNameChar = empName.toLowerCase().charAt(0);
                                                  if (alphaArray[i] == empNameChar) {
                              empInfoArray[countJoo][1] = rateArray;
                              break;
                    countJoo++;
          // DecimalFormat dollarFormat = new DecimalFormat("$#0.00");
          for (int i = 0; i < empInfoArray.length; i++) {
               if (!(empInfoArray[i][0] == null)) {
                    String hourPrompt = "Please enter hours for " + empInfoArray[i][0] + ": ";
                    String empHours = JOptionPane.showInputDialog(hourPrompt);
                    int test = 0;
                    empInfoArray[i][2] = empHours;
                    // convert type String to double
                    //double tmpPayRate = Double.parseDouble(empInfoArray[i][1]);
                    //double tmpHours = Double.parseDouble(empInfoArray[i][2]);
                    //double tmpTotalPay = tmpPayRate * tmpHours;
                    // create via a string in empInfoArray
                         BigDecimal bdRate = new BigDecimal(empInfoArray[i][1]);
                         BigDecimal bdHours = new BigDecimal(empInfoArray[i][2]);
                         BigDecimal bdTotal = bdRate.multiply(bdHours);
                         bdTotal = bdTotal.setScale(2, RoundingMode.HALF_UP);
                         String strTotal = bdTotal.toString();
                         empInfoArray[i][3] = strTotal;
                    //String strTotalPay = Double.toString(tmpTotalPay);
                    //empInfoArray[i][3] = dollarFormat.format(tmpTotalPay);
                    else {
                         break;
          AverageSalaryCalcAndPrint averageSalaryCalcAndPrint = new AverageSalaryCalcAndPrint();
          averageSalaryCalcAndprint.calcAndPrint();
Code for AverageSalaryCalcAndPrint class (upon compiling, there are more than a few complie errors, and that is due to me cutting/pasting the code from the other class into the new class and the compiler does not know how to access the array/variables from the gatherData class):
import javax.swing.JOptionPane; // uses class JOptionPane
import java.lang.reflect.Array;
import java.math.*;
public class AverageSalaryCalcAndPrint
     public static void calcAndPrint() {
          AverageSalaryGather averageSalaryGather = new AverageSalaryGather();
          double totalHours = 0;
          double averageHours = 0;
          double averageSalary = 0;
          double totalSalary = 0;
          double averageGroupSalary = 0;
          double totalGroupSalary = 0;
          int countOfArray = 0;
          for (int i = 0; i < empInfoArray.length; i++) {
               if (!(empInfoArray[0] == null)) {
                    totalSalary = totalSalary + Double.parseDouble(empInfoArray[i][1]);
                    totalHours = totalHours + Double.parseDouble(empInfoArray[i][2]);
                    totalGroupSalary = totalGroupSalary + Double.parseDouble(empInfoArray[i][3]);
                    countOfArray = i;
          averageHours = totalHours / (countOfArray + 1);
          averageSalary = totalSalary / (countOfArray + 1);
          averageGroupSalary = totalGroupSalary / (countOfArray + 1);
          String strAverageHourlySalary = Double.toString(averageSalary);
          String strAverageHours = Double.toString(averageHours);
          String strAverageGroupSalary = Double.toString(averageGroupSalary);
          for (int i = 0; i < empInfoArray.length; i++) {
               if (!(empInfoArray[i][0] == null)) {
                    finalOutput = finalOutput + empInfoArray[i][0] + " - " + "$" + empInfoArray[i][1] + "/hr" + " - " + empInfoArray[i][2] + " - " + "$" + empInfoArray[i][3] + "\n";
          averageHoursOutput = averageHoursOutput + strAverageHours + "\n";
          averageSalaryOutput = averageSalaryOutput + strAverageHourlySalary + "\n";
          averageGroupSalaryOutput = averageGroupSalaryOutput + strAverageGroupSalary + "\n";
          JOptionPane.showMessageDialog(null, finalOutput + averageHoursOutput + averageSalaryOutput + averageGroupSalaryOutput, "Totals", JOptionPane.PLAIN_MESSAGE );

Call the other class's methods. (In general, you
shouldn't even try to access fields from the other
class.) Also you should be looking at an
instance of the other class, and not the class
itself, generally.Would I not call the other classes method's by someting similar as below?:
AverageSalaryCalcAndPrint averageSalaryCalcAndPrint = new AverageSalaryCalcAndPrint();
          averageSalaryCalcAndprint.calcAndPrint(); Well... don't break down classes based on broad steps
of the program. Break them down by the information
being managed. I'm not expressing this well...Could you give an example of this? I'm not sure I'm following well.
Anyway, you want one or more objects that represent
the data, and operations on that data. Those
operations include calculations on the data. Other
classes might represent the user interface, and
different output types (say, a file versus the
console).Yes, the requirements is to have a separate class to gather the data, and then another class to calculate and print the data. Is this what you mean in the above?

Code Sample: Easy RFC Lookup From XSLT Mappings Using a Java Helper Class

Hi everyone,
This is just a shameless plug for my article: <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/05a3d62e-0a01-0010-14bc-adc8efd4ee14">Easy RFC Lookup From XSLT Mappings Using a Java Helper Class</a>. I hope you're interested in reading it, and I welcome your comments in this thread.
Kind regards,
Thorsten

Hi Stefan. Thanks for your post. I have already done that. It still does not work. As a base for my java helper class I have usesd Thorstens code.
The problem is quite confusing. I will try to ouline both issues here.
First of all, when try to test from within the Operation Mapping, I always get a java error saying it cannot find the communication channel (it is there and working because I have tested it with the RFCLookup in graphical mapping). I have found a way to work around this, and that is to uncheck the "Use SAP XMLToolkit" checkbox --> switch to test tab, enter my ReceiverService in the parameter tab (header parameter) --> switch back to Definition tab, check the "Use SAP XMLToolkit" checkbox --> switch to Test tab and run the test. Then the XSLT and call to java helper class will work. Of course this is not really something you want to do all the time. Maybe there is a bug.
Secondly, it never works when I try to do it "live". I am using a file adapter to pick up one file, convert it and a file adapter to drop the converted file. I get the following error code in SXMB_MONI.
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="">
<SAP:Category>Application</SAP:Category>
<SAP:Code area="MAPPING">TRANSFORMER_CONF_EX</SAP:Code>
<SAP:P1>ATJ_Accounting2XML_Accounting.xsl</SAP:P1>
<SAP:P2>http://rd.accounting.logica.com</SAP:P2>
<SAP:P3>fd552c30-bad9-11dd-9761-c21dac1b818c</SAP:P3>
<SAP:P4>-1</SAP:P4>
<SAP:AdditionalText />
<SAP:Stack>TransformerConfigurationException triggered while loading XSLT mapping ATJ_Accounting2XML_Accounting.xsl; http://rd.accounting.logica.comfd552c30-bad9-11dd-9761-c21dac1b818c-1</SAP:Stack>
<SAP:Retry>M</SAP:Retry>
</SAP:Error>
Using an XSLT without a call to a java helper class, works just fine.
I am totally at a loss here. Any more input would be much appreciated.
/Patrik

1 Urgent doubt using filestream from JBuyout class!1!1!

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