ActionPerformed problem with jmenu

hi i am trying to get the action performed for 'exit' in a JMenu but
i cant seem to find the problem the program will run be nothing hapens when i click exit on the menu. any help would be greatly welcomed
markimport java.awt.*;
import java.awt.event.*;
import java.sql.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
class MyFrame2 extends JFrame implements ActionListener{
     private JMenuBar bar = new JMenuBar();//create menubar
     private JMenu j1 = new JMenu();
     private JMenu j2 = new JMenu();
     private JMenu j3 = new JMenu();
     private JMenu j4 = new JMenu();
     private JMenu j5 = new JMenu();
     private JMenuItem jm1 = new JMenuItem();
     private JMenuItem jm2 = new JMenuItem();
     Container content;
public MyFrame2(String str)
{  super(str);
     content= this.getContentPane();
     content.setLayout(new FlowLayout());
setSize(220,250);
     bar.add(j1);
     bar.add(j2);
     bar.add(j3);
     bar.add(j4);
     bar.add(j5);
     j1.setText("Register");
     j2.setText("Not Connected");
     j3.setText("New DB");
     j4.setText("Admin");
     j5.setText("Exit");
     j5.addActionListener(this);
     jm1.setText("Server Info");
     jm2.setText("User Admin");
     j4.add(jm1);
     j4.add(jm2);
     setJMenuBar(bar);
     setVisible(true); }
     public void actionPerformed(ActionEvent e){
     Object target=e.getSource();
          if (target== j5){System.exit(0);}
     public class Db4
     public static void main(String args[]) {
MyFrame2 fr= new MyFrame2("Account Example");

The problem is that your "j5" is a JMenu not a JMenuItem. JMenu objects respond to mouseclicks by displaying a popup menu not by calling an actionlistener. I changed "j5" to be a JMenuItem and it worked fine, although I won't advice placing JMenuItems directly on a menubar.

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    Any ideas would be appreciated, thanks.
    -J
    import java.awt.BorderLayout;
    import java.awt.Cursor;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.SwingUtilities;
    public class BusyFrameTest implements ActionListener
    private static Cursor busy = Cursor.getPredefinedCursor (Cursor.WAIT_CURSOR);
    private static Cursor done = Cursor.getDefaultCursor();
    JFrame frame;
    JButton[] buttons;
    public BusyFrameTest (String title)
    frame = new JFrame (title);
    buttons = new JButton[5];
    buttons[0] = new JButton ("BUSY");
    buttons[1] = new JButton ("DONE");
    buttons[2] = new JButton ("SLEEP");
    buttons[3] = new JButton ("INVOKE LATER");
    buttons[4] = new JButton ("DELAY");
    JPanel buttonPanel = new JPanel();
    for (int i = 0; i < buttons.length; i++)
    buttonPanel.add (buttons);
    frame.getContentPane().add (buttonPanel);
    frame.pack();
    frame.setVisible (true);
    public void addListeners (ActionListener listener)
    for (int i = 0; i < buttons.length; i++)
    buttons[i].addActionListener (listener);
    public void actionPerformed (ActionEvent e)
    System.out.print (frame.getTitle() + ": " + e.getActionCommand());
    if (e.getActionCommand().equals ("BUSY"))
    frame.setCursor (busy);
    else if (e.getActionCommand().equals ("DONE"))
    frame.setCursor (done);
    else if (e.getActionCommand().equals ("SLEEP"))
    frame.setCursor (busy);
    try { Thread.sleep (3000); } catch (Exception ex) { }
    frame.setCursor (done);
    System.out.print (" finished");
    else if (e.getActionCommand().equals ("INVOKE LATER"))
    frame.setCursor (busy);
    SwingUtilities.invokeLater (thread);
    else if (e.getActionCommand().equals ("DELAY"))
    try { Thread.sleep (3000); } catch (Exception ex) { }
    frame.setCursor (busy);
    try { Thread.sleep (3000); } catch (Exception ex) { }
    frame.setCursor (done);
    System.out.print (" finished");
    System.out.println();
    Runnable thread = new Runnable()
    public void run()
    try { Thread.sleep (3000); } catch (Exception ex) { }
    frame.setCursor (done);
    System.out.println (" finished");
    public static void main (String[] args)
    BusyFrameTest f1 = new BusyFrameTest ("F1");
    f1.addListeners (f1);
    BusyFrameTest f2 = new BusyFrameTest ("F2");
    BusyFrameTest f3 = new BusyFrameTest ("F3");
    f2.addListeners (f3); // 2 listens to 3
    f3.addListeners (f2); // 3 listens to 2

    I've had the same problems with cursors and repaints in a swing application, and I was thinking of if I could use invokeLater, but I never got that far with it.
    I still believe you would need a thread for the time consuming task, and that invokeLater is something you only need to use in a thread different from the event thread.

  • Can some one help me with this problem with my frame???

    i have gt a veri strange problem with my program,that is teh graphic changes only when i resize the the frame,if i dun resize,it will remain the same.However what i intended is that when i click on the radio button,it will change immediately to the respective pages.A simple version of my code is below,can someone helpl me solve it??(there is 3 different class)
    import java.awt.event.*;
    import javax.swing.*;
    public class MainPg extends JFrame implements ActionListener{
         private javax.swing.JPanel jContentPane = null;
         private javax.swing.JPanel buttons = null;
         private javax.swing.JRadioButton one = null;
         private javax.swing.JRadioButton two = null;
         private javax.swing.JPanel change = null;
         public MainPg() {
              super();
              initialize();
         private void initialize() {
              this.setSize(300, 200);
              this.setContentPane(getJContentPane());
              this.setName("mainClass");
              this.setVisible(true);
         private javax.swing.JPanel getJContentPane() {
              if (jContentPane == null) {
                   jContentPane = new javax.swing.JPanel();
                   jContentPane.setLayout(new java.awt.BorderLayout());
                   jContentPane.add(getButtons(), java.awt.BorderLayout.WEST);
                   jContentPane.add(getChange(), java.awt.BorderLayout.CENTER);
              return jContentPane;
         private javax.swing.JPanel getButtons() {
              if(buttons == null) {
                   buttons = new javax.swing.JPanel();
                   java.awt.GridLayout layGridLayout1 = new java.awt.GridLayout();
                   layGridLayout1.setRows(2);
                   layGridLayout1.setColumns(1);
                   ButtonGroup group=new ButtonGroup();
                   group.add(getOne());
                   group.add(getTwo());
                   buttons.setLayout(layGridLayout1);
                   buttons.add(getOne(), null);
                   buttons.add(getTwo(), null);
              return buttons;
         private javax.swing.JRadioButton getOne() {
              if(one == null) {
                   one = new javax.swing.JRadioButton();
                   one.setText("One");
                   one.setSelected(true);
                   one.addActionListener(this);
                   one.setActionCommand("one");
              return one;
         private javax.swing.JRadioButton getTwo() {
              if(two == null) {
                   two = new javax.swing.JRadioButton();
                   two.setText("Two");
                   two.addActionListener(this);
                   two.setActionCommand("two");
              return two;
         private javax.swing.JPanel getChange() {
              if(change == null) {
                   change = new javax.swing.JPanel();
              change.add(new One());
              return change;
         public static void main(String[] args){
              new MainPg();
         public void actionPerformed(ActionEvent e) {
              change.removeAll();
              if("one".equals(e.getActionCommand())){
                   change.add(new One());
              else{
                   change.add(new Two());
              change.repaint();
    import javax.swing.*;
    public class One extends JPanel {
         private javax.swing.JPanel jPanel = null;
         private javax.swing.JLabel jLabel = null;
         private javax.swing.JPanel jPanel1 = null;
         private javax.swing.JLabel jLabel1 = null;
         private javax.swing.JLabel jLabel2 = null;
         public One() {
              super();
              initialize();
         * This method initializes this
         * @return void
         private void initialize() {
              this.setLayout(new java.awt.BorderLayout());
              this.add(getJPanel(), java.awt.BorderLayout.NORTH);
              this.add(getJPanel1(), java.awt.BorderLayout.WEST);
              this.setSize(300, 200);
         * This method initializes jPanel
         * @return javax.swing.JPanel
         private javax.swing.JPanel getJPanel() {
              if(jPanel == null) {
                   jPanel = new javax.swing.JPanel();
                   jPanel.add(getJLabel(), null);
              return jPanel;
         * This method initializes jLabel
         * @return javax.swing.JLabel
         private javax.swing.JLabel getJLabel() {
              if(jLabel == null) {
                   jLabel = new javax.swing.JLabel();
                   jLabel.setText("one");
              return jLabel;
         * This method initializes jPanel1
         * @return javax.swing.JPanel
         private javax.swing.JPanel getJPanel1() {
              if(jPanel1 == null) {
                   jPanel1 = new javax.swing.JPanel();
                   java.awt.GridLayout layGridLayout2 = new java.awt.GridLayout();
                   layGridLayout2.setRows(2);
                   layGridLayout2.setColumns(1);
                   jPanel1.setLayout(layGridLayout2);
                   jPanel1.add(getJLabel2(), null);
                   jPanel1.add(getJLabel1(), null);
              return jPanel1;
         * This method initializes jLabel1
         * @return javax.swing.JLabel
         private javax.swing.JLabel getJLabel1() {
              if(jLabel1 == null) {
                   jLabel1 = new javax.swing.JLabel();
                   jLabel1.setText("one");
              return jLabel1;
         * This method initializes jLabel2
         * @return javax.swing.JLabel
         private javax.swing.JLabel getJLabel2() {
              if(jLabel2 == null) {
                   jLabel2 = new javax.swing.JLabel();
                   jLabel2.setText("one");
              return jLabel2;
    import javax.swing.*;
    public class Two extends JPanel {
         private javax.swing.JLabel jLabel = null;
         public Two() {
              super();
              initialize();
         * This method initializes this
         * @return void
         private void initialize() {
              this.setLayout(new java.awt.FlowLayout());
              this.add(getJLabel(), null);
              this.setSize(300, 200);
         * This method initializes jLabel
         * @return javax.swing.JLabel
         private javax.swing.JLabel getJLabel() {
              if(jLabel == null) {
                   jLabel = new javax.swing.JLabel();
                   jLabel.setText("two");
              return jLabel;
    }

    //change.repaint();
    change.revalidate();

  • Problem with JTextPane and StateInvariantError

    Hi. I am having a problem with JTextPanes and changing only certain text to bold. I am writing a chat program and would like to allow users to make certain text in their entries bold. The best way I can think of to do this is to add <b> and </b> tags to the beginning and end of any text that is to be bold. When the other client receives the message, the program will take out all of the <b> and </b> tags and display any text between them as bold (or italic with <i> and </i>). I've searched the forums a lot and figured out several ways to make the text bold, and several ways to determine which text is bold before sending the text, but none that work together. Currently, I add the bold tags with this code: (note: messageDoc is a StyledDocument and messageText is a JTextPane)
    public String getMessageText() {
              String text = null;
              boolean bold = false, italic = false;
              for (int i = 0; i < messageDoc.getLength(); i++) {
                   messageText.setCaretPosition(i);
                   if (StyleConstants.isBold(messageDoc.getCharacterElement(i).getAttributes()) && !bold) {
                        bold = true;
                        if (text != null) {
                             text = text + "<b>";
                        else {
                             text = "<b>";
                   else if (StyleConstants.isBold(messageDoc.getCharacterElement(i).getAttributes()) && bold) {
                        // Do nothing
                   else if (!StyleConstants.isBold(messageDoc.getCharacterElement(i).getAttributes()) && bold) {
                        bold = false;
                        if (text != null) {
                             text = text + "</b>";
                        else {
                             text = "</b>";
                   try {
                        if (text != null) {
                             text = text + messageDoc.getText(i,1);
                        else {
                             text = messageDoc.getText(i, 1);
                   catch (BadLocationException e) {
                        System.out.println("An error occurred while getting the text from the message document");
                        e.printStackTrace();
              return text;
         } // end getMessageText()When the message is sent to the other client, the program searches through the received message and changes the text between the bold tags to bold. This seems as if it should work, but as soon as I click on the bold button, I get a StateInvariantError. The code for my button is:
    public void actionPerformed(ActionEvent evt) {
              if (evt.getSource() == bold) {
                   MutableAttributeSet bold = new SimpleAttributeSet();
                   StyleConstants.setBold(bold, true);
                   messageText.getStyledDocument().setCharacterAttributes(messageText.getSelectionStart(), messageText.getSelectionStart() - messageText.getSelectionEnd() - 1, bold, false);
         } //end actionPerformed()Can anyone help me to figure out why this error is being thrown? I have searched for a while to figure out this way of doing what I'm trying to do and I've found out that a StateInvariantError has been reported as a bug in several different circumstances but not in relation to this. Or, if there is a better way to add and check the style of the text that would be great as well. Any help is much appreciated, thanks in advance.

    Swing related questions should be posted in the Swing forum.
    Can't tell from you code what the problem is because I don't know the context of how each method is invoked. But it would seem like you are trying to query the data in the Document while the Document is being updated. Try wrapping the getMessageText() method is a SwingUtilities.invokeLater().
    There is no need to write custom code for a Bold Action you can just use:
    JButton bold = new JButton( new StyledEditorKit.BoldAction() );Also your code to build the text String is not very efficient. You should not be using string concatenation to append text to the string. You should be using a StringBuffer or StringBuilder.

  • Problem with writing and reading using serialization

    I am having a problem with writing and reading an object that has another object in it. The purpose of the class is to write a order that has multiple items in it. And there will be several orders. This is for an IB project, where one of the requirements is to utilize a hierarchical composite data structure. That is, it is "one that contains more than one element and at least one of the elements is a composite data structure. Examples are, an array or linked list of records, a record that has one field that is another record, or an array". The code is shown below:
    The error produced is
    java.lang.NullPointerException
         at SamsonRubberIndustries.CustomerOrderDetails.createCustOrdDetailsScreen(CustomerOrderDetails.java:150)
         at SamsonRubberIndustries.CustomerOrderDetails$1.run(CustomerOrderDetails.java:78)
         at java.awt.event.InvocationEvent.dispatch(Unknown Source)
         at java.awt.EventQueue.dispatchEvent(Unknown Source)
         at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.run(Unknown Source)
    public class CustOrdObject implements Serializable {
         public int CustID;
         public int CustOrderID;
         public Object OrderDate;
         public InnerCustOrdObject[] innerCustOrdObj;
         public float GrandTotal;
         public int MaxItems;
         public CustOrdObject() {}
         public CustOrdObject(InnerCustOrdObject[] innerCustOrdObj,
    int CustID, int CustOrderID, Object OrderDate,
    float GrandTotal, int innerarrlength, int innerarrpos, int MaxItems) {
              this.CustID = CustID;
              this.CustOrderID = CustOrderID;
              this.OrderDate = OrderDate;
              this.GrandTotal = GrandTotal;          
              this.MaxItems = MaxItems;
              this.innerCustOrdObj = new InnerCustOrdObject[MaxItems];
         public InnerCustOrdObject[] getInnerCustOrdObj() {
              return innerCustOrdObj;
         public void setInnerCustOrdObj(InnerCustOrdObject[] innerCustOrdObj) {
              this.innerCustOrdObj = innerCustOrdObj;
         public int getCustID() {
              return CustID;
         public void setCustID(int custID) {
              CustID = custID;
         public int getCustOrderID() {
              return CustOrderID;
         public void setCustOrderID(int custOrderID) {
              CustOrderID = custOrderID;
         public Object getOrderDate() {
              return OrderDate;
         public void setOrderDate(Object orderDate) {
              OrderDate = orderDate;
         public void setGrandTotal(float grandTotal) {
              GrandTotal = grandTotal;
         public float getGrandTotal() {
              return GrandTotal;
         public int getMaxItems() {
              return MaxItems;
         public void setMaxItems(int maxItems) {
              MaxItems = maxItems;
    public class InnerCustOrdObject implements Serializable{
         public int ItemNumber;
         public float UnitPrice;
         public int QuantityRequired;
         public float TotalPrice;
         public InnerCustOrdObject() {}
         public InnerCustOrdObject(int ItemNumber, float
    UnitPrice, int QuantityRequired, float TotalPrice){
              this.ItemNumber = ItemNumber;
              this.UnitPrice = UnitPrice;
              this.QuantityRequired = QuantityRequired;
              this.TotalPrice = TotalPrice;
         public int getItemNumber() {
              return ItemNumber;
         public void setItemNumber(int itemNumber) {
              ItemNumber = itemNumber;
         public int getQuantityRequired() {
              return QuantityRequired;
         public void setQuantityRequired(int quantityRequired) {
              QuantityRequired = quantityRequired;
         public float getTotalPrice() {
              return TotalPrice;
         public void setTotalPrice(float totalPrice) {
              TotalPrice = totalPrice;
         public float getUnitPrice() {
              return UnitPrice;
         public void setUnitPrice(float unitPrice) {
              UnitPrice = unitPrice;
    import java.awt.*;
    import java.awt.event.*;
    import java.io.*;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import javax.swing.*;
    import javax.swing.table.DefaultTableCellRenderer;
    import javax.swing.table.DefaultTableModel;
    public class CustomerOrderDetails extends CommonFeatures{
         //TODO
         private static int MAX_ORDERS = 200;
         private static int MAX_ORDERITEMS = 100;
         private static int MaxRecord;
         private static int CurrentRecord = 1;
         private static int currentItem;
         private static int MaxItems;
         private static boolean FileExists, recFileExists;
         private static CustOrdObject[] orderDetails = new CustOrdObject[MAX_ORDERS];
         private static InnerCustOrdObject[] innerCustOrdObj = new InnerCustOrdObject[MAX_ORDERITEMS];     
         private static File OrderDetailsFile = new File("CustOrdDetails.dat");
         private static File OrdRecordNumStore = new File("OrdRecordNumStore.txt");
         private static PrintWriter writeFile;
         private static BufferedReader readFile;
         private static ObjectOutputStream objOut;
         private static ObjectInputStream objIn;
         //Set format for date
         SimpleDateFormat simpleDF = new SimpleDateFormat("dd MM yyyy");
         //--<BEGINNING>--Declaring Interface Variables------------------------------------------//
         private JPanel innertoppanel, innercenterpanel, innerbottompanel, innerrightpanel, innerleftpanel;
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         private JTextField CustIDTxt, CustOrderIDTxt, OrderedDateTxt, GrandTotTxt, ItemNumberTxt, UnitPriceTxt, QuantityReqTxt, TotPriceTxt;
         private JButton addrecordbtn, savebtn, externalprevbtn, externalnextbtn, internalprevbtn, internalnextbtn, gotorecordbtn, additemreqbtn;
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         public static void main(String[] args) {
              final CustomerOrderDetails COD = new CustomerOrderDetails();
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                   public void run() {
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                             COD.createCustOrdDetailsScreen();
                        } catch (Exception eb) {
                             eb.printStackTrace();
         //--<BEGINNING>--Creating CustomerOrderDetails Screen---------------------------------------//
         public JFrame createCustOrdDetailsScreen() {
              createDefaultFrame();
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              createContainerPanel();
              containerpanel.add(createCustOrdDetailsTitle(), BorderLayout.NORTH);
              containerpanel.add(createCustOrdDetailsMainPanel(), BorderLayout.CENTER);
              //containerpanel.add(createCustOrdDetailsLeftNavButtons(), BorderLayout.WEST);
              //containerpanel.add(createCustOrdDetailsRightNavButtons(), BorderLayout.EAST);
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              mainframe.setContentPane(containerpanel);
              mainframe.setLocationRelativeTo(null);
              mainframe.setVisible(true);
              //--<BEGINNING>--Checks to see whether CRecordNumberStore file exists-------------------------------//
              if (OrdRecordNumStore.exists() == true) {
                   recFileExists = true;
              }else {
                   recFileExists = false;
              if (recFileExists == true) {
                   MaxRecord = readRecordNumber();
                   CurrentRecord = MaxRecord;
                   //readOrder();
                   //readInnerOrderRecord(CurrentRecord);
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                   System.out.println("Max Record " +MaxRecord);
              }else{
                   MaxRecord = 1;
                   writeRecordNumber(MaxRecord);
                   CustOrderIDTxt.setText(""+MaxRecord);
                   System.out.println("Current Record " +CurrentRecord);
                   System.out.println("Max Record " +MaxRecord);
              //--<END>--Checks to see whether CRecordNumberStore file exists--------------------------------------//
              if(readOrder() != null){
                   orderDetails = (CustOrdObject[]) readOrder();
                 innerCustOrdObj = orderDetails[CurrentRecord].getInnerCustOrdObj();
                   MaxItems = orderDetails[CurrentRecord].getMaxItems();
                   if(CurrentRecord > 1 && CurrentRecord < MaxRecord){
                        externalnextbtn.setEnabled(true);
                        externalprevbtn.setEnabled(true);
                   if(CurrentRecord >= MaxRecord){
                        externalnextbtn.setEnabled(false);
                   getFieldText(CurrentRecord-1);
              }else{
                   orderDetails[CurrentRecord] = new CustOrdObject();
                   currentItem = 1;
              return mainframe;
         //--<END>--Creating CustomerOrderDetails Screen---------------------------------------------//
         public JPanel createCustOrdDetailsTitle(){
              createTitlePanel();
              titlepanel.setBackground(TxtfontColor);
              label.setText("- Customer Order Details -");
              labelpanel.setBackground(TxtfontColor);
              label.setForeground(Color.white);
              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor) ;
              buttonpanel.add(createReturnToMainMenuButton());
              titlepanel.add(labelpanel, BorderLayout.WEST);
              titlepanel.add(buttonpanel, BorderLayout.EAST);
              return titlepanel;
         public JPanel createCustOrdDetailsMainPanel(){
              createmainpanel();
              mainpanel.setBackground(TxtfontColor);
              mainpanel.setLayout(new BorderLayout());          
              mainpanel.setBorder(BorderFactory.createTitledBorder(""));
              mainpanel.add(createInnerTopPanel(), BorderLayout.NORTH);
              mainpanel.add(createInnerCenterPanel(), BorderLayout.CENTER);
              mainpanel.add(createInnerBottomPanel(), BorderLayout.SOUTH);
              mainpanel.add(createInnerRightPanel(), BorderLayout.EAST);
              mainpanel.add(createInnerLeftPanel(), BorderLayout.WEST);
              return mainpanel;
         public JPanel createInnerTopPanel(){
              innertoppanel = new JPanel(new GridBagLayout());
              innertoppanel.setBackground(TxtfontColor);
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              CustIDLbl = new JLabel("Customer ID");
              CustIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustIDLbl.setFont(font);
              CustIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 1;
              innertoppanel.add(CustIDLbl, GBC);     
              CustIDTxt = new JTextField(20);
              CustIDTxt.setEditable(true);
              GBC.gridx = 2;
              GBC.gridy = 1;
              innertoppanel.add(CustIDTxt, GBC);
              GBC.gridx = 3;
              GBC.gridy = 1;
              innertoppanel.add(Box.createHorizontalStrut(220), GBC);
              OrderedDateLbl = new JLabel("Order Date");
              OrderedDateLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              OrderedDateLbl.setFont(font);
              OrderedDateLbl.setForeground(LblfontColor);
              GBC.gridx = 4;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateLbl, GBC);     
              //Get today's date
              Date todaydate = new Date();
              OrderedDateTxt = new JTextField(simpleDF.format(todaydate), 20);
              OrderedDateTxt.setHorizontalAlignment(JTextField.CENTER);
              OrderedDateTxt.setEditable(false);
              GBC.gridx = 5;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateTxt, GBC);
              CustOrderIDLbl = new JLabel("Customer Order ID");
              CustOrderIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustOrderIDLbl.setFont(font);
              CustOrderIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDLbl, GBC);
              CustOrderIDTxt = new JTextField(20);
              CustOrderIDTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDTxt, GBC);
              return innertoppanel;
         public JPanel createInnerCenterPanel(){
              innercenterpanel = new JPanel(new GridBagLayout());
              innercenterpanel.setBackground(TxtfontColor);
              innercenterpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              ItemNumberLbl = new JLabel("Item Number");
              ItemNumberLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              ItemNumberLbl.setFont(font);
              ItemNumberLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 1;
              innercenterpanel.add(ItemNumberLbl, GBC);     
              ItemNumberTxt = new JTextField(20);
              GBC.gridx = 2;
              GBC.gridy = 1;
              innercenterpanel.add(ItemNumberTxt, GBC);
              UnitPriceLbl = new JLabel("Unit Price");
              UnitPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              UnitPriceLbl.setFont(font);
              UnitPriceLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 2;
              innercenterpanel.add(UnitPriceLbl, GBC);     
              UnitPriceTxt = new JTextField(20);
              //UnitPriceTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 2;
              innercenterpanel.add(UnitPriceTxt, GBC);
              QuantityReqLbl = new JLabel("Quantity Required");
              QuantityReqLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              QuantityReqLbl.setFont(font);
              QuantityReqLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 3;
              innercenterpanel.add(QuantityReqLbl, GBC);     
              QuantityReqTxt = new JTextField(20);
              //QuantityReqTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 3;
              innercenterpanel.add(QuantityReqTxt, GBC);
              TotPriceLbl = new JLabel("Total Price");
              TotPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              TotPriceLbl.setFont(font);
              TotPriceLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 4;
              innercenterpanel.add(TotPriceLbl, GBC);     
              TotPriceTxt = new JTextField(20);
              //TotPriceTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 4;
              innercenterpanel.add(TotPriceTxt, GBC);
              return innercenterpanel;
         public JPanel createInnerBottomPanel(){
              innerbottompanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
              innerbottompanel.setBackground(TxtfontColor);
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              GrandTotLbl = new JLabel("Grand Total");
              GrandTotLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              GrandTotLbl.setFont(font);
              GrandTotLbl.setForeground(LblfontColor);
              innerbottompanel.add(GrandTotLbl);
              innerbottompanel.add(Box.createHorizontalStrut(30));
              GrandTotTxt = new JTextField(20);
              innerbottompanel.add(GrandTotTxt);
              return innerbottompanel;
         public JPanel createInnerRightPanel(){
              innerrightpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
              innerrightpanel.setBackground(TxtfontColor);
              innerrightpanel.setLayout(new BoxLayout(navrightpanel, BoxLayout.Y_AXIS));
              innerrightpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              innerrightpanel.setLayout(new GridBagLayout());          
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              internalnextbtn = new JButton(createNextButtonIcon());
              GBC.gridx = 1;
              GBC.gridy = 1;
              internalnextbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        //getInnerFieldText(currentItem);
                        internalprevbtn.setEnabled(true);
                        if(currentItem < MaxItems){
                             ++CurrentRecord;
                             //readOrder();
                             //readInnerOrderRecord(CurrentRecord);
                             setInnerFieldText(currentItem);
                             System.out.println(CurrentRecord);//Checking RECORD_NUM
                        if(currentItem == MaxItems){
                             internalnextbtn.setEnabled(false);
              innerrightpanel.add(internalnextbtn, GBC);
              return innerrightpanel;
         public JPanel createInnerLeftPanel(){
              innerleftpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
              innerleftpanel.setBackground(TxtfontColor);
              innerleftpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              innerleftpanel.setForeground(Color.BLACK);
              innerleftpanel.setLayout(new GridBagLayout());          
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              internalprevbtn = new JButton(createPreviousButtonIcon());
              GBC.gridx = 1;
              GBC.gridy = 1;
              internalprevbtn.addActionListener(new ActionListener(){
                   public void  actionPerformed(ActionEvent evt){
                        //getInnerFieldText(currentItem);
                        internalnextbtn.setEnabled(true);
                        if(currentItem == 1){
                             internalprevbtn.setEnabled(false);
                        if(currentItem > 0){
                             --currentItem;
                             //readOrder();
                             setInnerFieldText(currentItem);
              innerleftpanel.add(internalprevbtn, GBC);
              return innerleftpanel;
         public JPanel createCustOrdDetailsButtons(){
              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor);
              externalprevbtn = new JButton(createPreviousButtonIcon());
              externalprevbtn.addActionListener(new ActionListener(){
                   public void  actionPerformed(ActionEvent evt){
                        getFieldText(CurrentRecord);
                        externalnextbtn.setEnabled(true);
                        if(CurrentRecord == 1){
                             externalprevbtn.setEnabled(false);
                        if(CurrentRecord > 0){
                             --CurrentRecord;
                             setFieldText(CurrentRecord);
                             System.out.println(CurrentRecord);//Checking RECORD_NUM
              buttonpanel.add(externalprevbtn);
              addrecordbtn = new JButton("Add Record", createAddButtonIcon());
              addrecordbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        try{
                             MaxRecord = readRecordNumber();
                             MaxRecord++;
                             writeRecordNumber(MaxRecord);
                             //--<BEGINNING>--Clear Fields-------------------------------------------------------//
                             CustIDTxt.setText("");
                             CustOrderIDTxt.setText(""+MaxRecord);
                             //Get today's date
                             Date todaydate = new Date();
                             OrderedDateTxt.setText(""+simpleDF.format(todaydate));
                             ItemNumberTxt.setText("");
                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             GrandTotTxt.setText("");
                             //--<END>--Clear Fields-------------------------------------------------------------//
                             externalnextbtn.setEnabled(false);
                             externalprevbtn.setEnabled(true);
                             System.out.println(MaxRecord);
                        } catch(Exception ec){ec.printStackTrace();}
              buttonpanel.add(addrecordbtn);
              savebtn = new JButton("Save Data", createSaveButtonIcon());
              savebtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        setFieldText(CurrentRecord);
                        writeOrder();
                        writeRecordNumber(MaxRecord);
                        System.out.println(CurrentRecord);
                        System.out.println(MaxRecord);
              buttonpanel.add(savebtn);
              java.net.URL imageURL_AddRowIcon = CommonFeatures.class.getResource("Icons/edit_add.png");
              ImageIcon AddRowIcon = new ImageIcon(imageURL_AddRowIcon);
              additemreqbtn = new JButton("Add Item", AddRowIcon);
              additemreqbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        try{
                             //--<BEGINNING>--Clear Fields-------------------------------------------------------//
                             ItemNumberTxt.setText("");
                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             //--<END>--Clear Fields-------------------------------------------------------------//
                             //CurrentRecord = MaxRecord;
                             currentItem++;
                             setInnerFieldText(currentItem);
                             internalnextbtn.setEnabled(false);
                             internalprevbtn.setEnabled(true);
                             System.out.println(MaxRecord);
                        } catch(Exception ec){ec.printStackTrace();}
              buttonpanel.add(additemreqbtn);
              externalnextbtn = new JButton(createNextButtonIcon());
              externalnextbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        getFieldText(CurrentRecord);
                        externalprevbtn.setEnabled(true);
                        if(CurrentRecord < MaxRecord){
                             ++CurrentRecord;
                             setFieldText(CurrentRecord);
                             System.out.println(CurrentRecord);//Checking RECORD_NUM
                        if(CurrentRecord == MaxRecord){
                             externalnextbtn.setEnabled(false);
              buttonpanel.add(externalnextbtn);
              return buttonpanel;
         //TODO
         public void setFieldText(int orderID){//TODO
              orderDetails[orderID].setCustID(Integer.parseInt(CustIDTxt.getText()));
              orderDetails[orderID].setCustOrderID(Integer.parseInt(CustOrderIDTxt.getText()));
              orderDetails[orderID].setOrderDate(OrderedDateTxt.getText());
              orderDetails[orderID].setInnerCustOrdObj(innerCustOrdObj);
              orderDetails[orderID].setMaxItems(MaxItems);
              setInnerFieldText(currentItem);
              orderDetails[orderID].setGrandTotal(Float.parseFloat(GrandTotTxt.getText()));
         public void setInnerFieldText(int currentItem){//TODO
              innerCustOrdObj[currentItem] = new InnerCustOrdObject();
              innerCustOrdObj[currentItem].setItemNumber(Integer.parseInt(ItemNumberTxt.getText()));
              innerCustOrdObj[currentItem].setUnitPrice(Float.parseFloat(UnitPriceTxt.getText()));
              innerCustOrdObj[currentItem].setQuantityRequired(Integer.parseInt(QuantityReqTxt.getText()));
              innerCustOrdObj[currentItem].setTotalPrice(Float.parseFloat(TotPriceTxt.getText()));
         public void getFieldText(int orderID){
              CustIDTxt.setText(Integer.toString(orderDetails[orderID].getCustID()));
              CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
              OrderedDateTxt.setText(""+orderDetails[orderID].getOrderDate());          
              currentItem = orderDetails[orderID].getMaxItems();
              System.err.println("currentItem" + currentItem);
              getInnerFieldText(currentItem);
              GrandTotTxt.setText(Float.toString(orderDetails[orderID].getGrandTotal()));
         public void getInnerFieldText(int currentItem){
              ItemNumberTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getItemNumber()));
              UnitPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getUnitPrice()));
              QuantityReqTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getQuantityRequired()));
              TotPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getTotalPrice()));
         public void writeOrder(){//TODO
              try {
                   objOut = new ObjectOutputStream(new FileOutputStream(OrderDetailsFile));
                   objOut.writeObject(orderDetails);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              } catch (IOException e) {
                   e.printStackTrace();
         public Object readOrder(){
              Object temporaryObj;
              try{
                   objIn = new ObjectInputStream(new FileInputStream(OrderDetailsFile));
                   temporaryObj = objIn.readObject();               
                   CustOrdObject[] blah = (CustOrdObject[]) temporaryObj;
                   System.out.println("Outer: "+blah[1].getCustID());
                   InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
                   System.out.println("Inner: "+whee[1].getItemNumber());
                   objIn.close();
                   System.out.println("Read Worky!");
                   return temporaryObj;
              }catch(Exception e){
                   e.printStackTrace();
                   System.out.println("Read No Worky!");
                   return null;
         public void writeRecordNumber(int MaxRecord){
              try{
                   objOut = new ObjectOutputStream(new FileOutputStream(OrdRecordNumStore));
                   objOut.writeObject(MaxRecord);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              }catch(Exception e){e.printStackTrace();}
         public int readRecordNumber() {
              try {
                   objIn = new ObjectInputStream(new FileInputStream(OrdRecordNumStore));
                   int temporaryObj = Integer.parseInt(objIn.readObject().toString());
                   objIn.close();
                   System.out.println("Read Number Worky!");
                   return temporaryObj;
              } catch (Exception e) {
                   e.printStackTrace();
                   System.out.println("Read Number No Worky!");
                   return -1;
    }Message was edited by:
    Kilik07
    Message was edited by:
    Kilik07

    ok i got reading to work to a certain extent... but the prob is i cnt seem to save my innerCustOrdObj proprly...when ever i look for a record using the gotorecordbtn, the outerobject, which is the orderDetails, seems to change but the innerCustOrdObj remains the same... heres the new code..
    public class CustomerOrderDetails extends CommonFeatures{
         //TODO
         private static int MAX_ORDERS = 200;
         private static int MAX_ORDERITEMS = 100;
         private static int MaxRecord;
         private static int CurrentRecord = 1;
         private static int currentItem;
         private static int MaxItems = 1;
         private static boolean FileExists, recFileExists;
         private static boolean RecordExists;
         private static CustOrdObject[] orderDetails = new CustOrdObject[MAX_ORDERS];
         private static InnerCustOrdObject[] innerCustOrdObj = new InnerCustOrdObject[MAX_ORDERITEMS];     
         private static File OrderDetailsFile = new File("CustOrdDetails.ser");
         private static File OrdRecordNumStore = new File("OrdRecordNumStore.txt");
         private static PrintWriter writeFile;
         private static BufferedReader readFile;
         private static ObjectOutputStream objOut;
         private static ObjectInputStream objIn;
         //Set format for date
         SimpleDateFormat simpleDF = new SimpleDateFormat("dd MM yyyy");
         //--<BEGINNING>--Declaring Interface Variables------------------------------------------//
         private JPanel innertoppanel, innercenterpanel, innerbottompanel, innerrightpanel, innerleftpanel;
         private JLabel CustIDLbl, CustOrderIDLbl, OrderedDateLbl, GrandTotLbl, ItemNumberLbl,UnitPriceLbl, QuantityReqLbl, TotPriceLbl;
         private JTextField CustIDTxt, CustOrderIDTxt, OrderedDateTxt, GrandTotTxt, ItemNumberTxt, UnitPriceTxt, QuantityReqTxt, TotPriceTxt;
         private JButton addrecordbtn, savebtn, externalprevbtn, externalnextbtn, internalprevbtn, internalnextbtn, gotorecordbtn, additemreqbtn;
         //--<END>--Declaring Interface Variables------------------------------------------------//
         public static void main(String[] args) {
              final CustomerOrderDetails COD = new CustomerOrderDetails();
              java.awt.EventQueue.invokeLater(new Runnable() {
                   public void run() {
                        try {
                             UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
                             COD.createCustOrdDetailsScreen();
                        } catch (Exception eb) {
                             eb.printStackTrace();
         //--<BEGINNING>--Creating CustomerOrderDetails Screen---------------------------------------//
         public JFrame createCustOrdDetailsScreen() {
              createDefaultFrame();
              mainframe.setSize(800,500);
              createContainerPanel();
              containerpanel.add(createCustOrdDetailsTitle(), BorderLayout.NORTH);
              containerpanel.add(createCustOrdDetailsMainPanel(), BorderLayout.CENTER);
              //containerpanel.add(createCustOrdDetailsLeftNavButtons(), BorderLayout.WEST);
              //containerpanel.add(createCustOrdDetailsRightNavButtons(), BorderLayout.EAST);
              containerpanel.add(createCustOrdDetailsButtons(), BorderLayout.SOUTH);
              mainframe.setContentPane(containerpanel);
              mainframe.setLocationRelativeTo(null);
              mainframe.setVisible(true);
              //--<BEGINNING>--Checks to see whether CRecordNumberStore file exists-------------------------------//
              if (OrdRecordNumStore.exists() == true) {
                   recFileExists = true;
              }else {
                   recFileExists = false;
              if (recFileExists == true) {
                   MaxRecord = readRecordNumber();
                   CurrentRecord = MaxRecord;
                   //readOrder();
                   //readInnerOrderRecord(CurrentRecord);
                   System.out.println("Current Record " +CurrentRecord);
                   System.out.println("Max Record " +MaxRecord);
              }else{
                   MaxRecord = 1;
                   writeRecordNumber(MaxRecord);
                   CustOrderIDTxt.setText(""+MaxRecord);
                   System.out.println("Current Record " +CurrentRecord);
                   System.out.println("Max Record " +MaxRecord);
              //--<END>--Checks to see whether CRecordNumberStore file exists--------------------------------------//
              if(readOrder() != null){
                   orderDetails = (CustOrdObject[]) readOrder();
                   //CurrentRecord--;
                   //System.out.println("Current Rec Here"+CurrentRecord);
                   if(orderDetails[CurrentRecord] == null){
                        System.err.println("CustomerOrderObj 1 is null !!");
                   }else{
                        System.err.println("CustomerOrderObj 1 is  not null !!");
                   if(orderDetails[CurrentRecord].getInnerCustOrdObj() == null){
                        System.err.println("InnerCustomerOrderObj is null !!");
                   }else{
                        System.err.println("InnerCustomerOrderObj is  not null !!");
                   innerCustOrdObj = orderDetails[CurrentRecord].getInnerCustOrdObj();
                   MaxItems = orderDetails[CurrentRecord].getMaxItems();
                   if(CurrentRecord > 1 && CurrentRecord < MaxRecord){
                        externalnextbtn.setEnabled(true);
                        externalprevbtn.setEnabled(true);
                   if(CurrentRecord >= MaxRecord){
                        externalnextbtn.setEnabled(false);
                   getFieldText(CurrentRecord);
                   getInnerFieldText(MaxItems);
              }else{
                   orderDetails[CurrentRecord] = new CustOrdObject();
                   currentItem = 1;
              return mainframe;
         //--<END>--Creating CustomerOrderDetails Screen---------------------------------------------//
         public JPanel createCustOrdDetailsTitle(){
              createTitlePanel();
              titlepanel.setBackground(TxtfontColor);
              label.setText("- Customer Order Details -");
              labelpanel.setBackground(TxtfontColor);
              label.setForeground(Color.white);
              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor) ;
              buttonpanel.add(createReturnToMainMenuButton());
              titlepanel.add(labelpanel, BorderLayout.WEST);
              titlepanel.add(buttonpanel, BorderLayout.EAST);
              return titlepanel;
         public JPanel createCustOrdDetailsMainPanel(){
              createmainpanel();
              mainpanel.setBackground(TxtfontColor);
              mainpanel.setLayout(new BorderLayout());          
              mainpanel.setBorder(BorderFactory.createTitledBorder(""));
              mainpanel.add(createInnerTopPanel(), BorderLayout.NORTH);
              mainpanel.add(createInnerCenterPanel(), BorderLayout.CENTER);
              mainpanel.add(createInnerBottomPanel(), BorderLayout.SOUTH);
              mainpanel.add(createInnerRightPanel(), BorderLayout.EAST);
              mainpanel.add(createInnerLeftPanel(), BorderLayout.WEST);
              return mainpanel;
         public JPanel createInnerTopPanel(){
              innertoppanel = new JPanel(new GridBagLayout());
              innertoppanel.setBackground(TxtfontColor);
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              CustIDLbl = new JLabel("Customer ID");
              CustIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustIDLbl.setFont(font);
              CustIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 1;
              innertoppanel.add(CustIDLbl, GBC);     
              CustIDTxt = new JTextField(20);
              CustIDTxt.setEditable(true);
              GBC.gridx = 2;
              GBC.gridy = 1;
              innertoppanel.add(CustIDTxt, GBC);
              GBC.gridx = 3;
              GBC.gridy = 1;
              innertoppanel.add(Box.createHorizontalStrut(220), GBC);
              OrderedDateLbl = new JLabel("Order Date");
              OrderedDateLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              OrderedDateLbl.setFont(font);
              OrderedDateLbl.setForeground(LblfontColor);
              GBC.gridx = 4;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateLbl, GBC);     
              //Get today's date
              Date todaydate = new Date();
              OrderedDateTxt = new JTextField(simpleDF.format(todaydate), 20);
              OrderedDateTxt.setHorizontalAlignment(JTextField.CENTER);
              OrderedDateTxt.setEditable(false);
              GBC.gridx = 5;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateTxt, GBC);
              CustOrderIDLbl = new JLabel("Customer Order ID");
              CustOrderIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustOrderIDLbl.setFont(font);
              CustOrderIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDLbl, GBC);
              CustOrderIDTxt = new JTextField(20);
              //CustOrderIDTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDTxt, GBC);
              return innertoppanel;
         public JPanel createInnerCenterPanel(){
              innercenterpanel = new JPanel(new GridBagLayout());
              innercenterpanel.setBackground(TxtfontColor);
              innercenterpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              GridBagConstraints GBC = new GridBagConstraints();
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                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             GrandTotTxt.setText("");
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                             externalprevbtn.setEnabled(true);
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                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
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              CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
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                   System.out.println("WORKING!");
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                   e.printStackTrace();
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                   InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
                   System.out.println("Inner: "+whee[1].getItemNumber());*/
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                   System.out.println("Read Worky!");
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                   e.printStackTrace();
                   System.out.println("Read No Worky!");
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                   System.out.println("WORKING!");
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              } catch (Exception e) {
                   e.printStackTrace();
                   System.out.println("Read Number No Worky!");
                   return -1;
    }Message was edited by:
    Kilik07

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              long memUse2 = 0;
              long memUseTemp = 0;
              for (int count = 0; count < 20; count++) {
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                   p.removeAll();
                   // Get memory usage before the task
                   Runtime.getRuntime().gc();
                   memUse1 = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage()
                             .getUsed();
                   // Fill Panel with components
                   for (int i = 0; i < 200; i++) {
                        // The Buttons seem to be released without any problem
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                   // get memory usage after the task
                   Runtime.getRuntime().gc();
                   memUseTemp = memUse2;
                   memUse2 = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage()
                             .getUsed();
                   // print Memory results
                   System.out.println("Memory Usage: " + f(memUse1) + "   ->"
                             + f(memUse2) + " [ Used:" + f(memUse2 - memUse1)
                             + " ] [ Freed: " + f(memUseTemp - memUse1) + "]");
         public String f(long m) // formats the output
              String s = "" + m;
              while (s.length() < 8)
                   s = " " + s;
              return s;
         public static void main(String[] args) {
              MemoryTestDLG d = new MemoryTestDLG(null);
              System.out
                        .println("------------------ Direct Call (all is OK) -------------------");
              d.doIT(); // Memory is freed with every call to JPanel.removeAll()
              System.out
                        .println("------------ Call from Dialog (memory is not freed) -------------");
              // The Memory keeps blocked
              d.setModal(true);
              d.setVisible(true);
              System.exit(0);
    }Message was edited by:
    marcvomorc

    Thank you for your answer,
    In this sample the programm does not run out of memory. But when you look at the output you see, that in the first run (direct call) the memory ist freed immediately when tha panel is cleared but in the second run (from the Button) the memory usage is getting bigger and bigger. Wenn you change the number of components to 2000 (4000)
    // Fill Panel with components
            for (int i = 0; i < 2000; i++) {
                // The Buttons seem to be released without any problem
    //... ...and use the default memory settings (69mb heap) the programm runns out of memory.
    I get the following output:
    ------------------ Direct Call (all is OK) -------------------
    Memory Usage:   445504   -> 8121016 [ Used: 7675512 ] [ Freed:  -445504]
    Memory Usage:   617352   -> 8114336 [ Used: 7496984 ] [ Freed:  7503664]
    Memory Usage:   810488   -> 8491768 [ Used: 7681280 ] [ Freed:  7303848]
    Memory Usage:   943704   -> 8114976 [ Used: 7171272 ] [ Freed:  7548064]
    Memory Usage:   836760   -> 8505072 [ Used: 7668312 ] [ Freed:  7278216]
    Memory Usage:   978352   -> 8114784 [ Used: 7136432 ] [ Freed:  7526720]
    Memory Usage:   835552   -> 8498288 [ Used: 7662736 ] [ Freed:  7279232]
    Memory Usage:   977096   -> 8114312 [ Used: 7137216 ] [ Freed:  7521192]
    Memory Usage:   835640   -> 8498376 [ Used: 7662736 ] [ Freed:  7278672]
    Memory Usage:   977296   -> 8115000 [ Used: 7137704 ] [ Freed:  7521080]
    Memory Usage:   835392   -> 8504872 [ Used: 7669480 ] [ Freed:  7279608]
    Memory Usage:   976968   -> 8115192 [ Used: 7138224 ] [ Freed:  7527904]
    Memory Usage:   836224   -> 8501624 [ Used: 7665400 ] [ Freed:  7278968]
    Memory Usage:   977840   -> 8115120 [ Used: 7137280 ] [ Freed:  7523784]
    Memory Usage:   835664   -> 8498256 [ Used: 7662592 ] [ Freed:  7279456]
    Memory Usage:   976856   -> 8114384 [ Used: 7137528 ] [ Freed:  7521400]
    Memory Usage:   835784   -> 8502848 [ Used: 7667064 ] [ Freed:  7278600]
    Memory Usage:   977360   -> 8114592 [ Used: 7137232 ] [ Freed:  7525488]
    Memory Usage:   835496   -> 8502720 [ Used: 7667224 ] [ Freed:  7279096]
    Memory Usage:   976440   -> 8115128 [ Used: 7138688 ] [ Freed:  7526280]
    ------------ Call from Dialog (memory is not freed) -------------
    Memory Usage:   866504   -> 8784320 [ Used: 7917816 ] [ Freed:  -866504]
    Memory Usage:  7480760   ->14631152 [ Used: 7150392 ] [ Freed:  1303560]
    Memory Usage: 14245264   ->22127104 [ Used: 7881840 ] [ Freed:   385888]
    Memory Usage: 19302896   ->27190744 [ Used: 7887848 ] [ Freed:  2824208]
    Memory Usage: 27190744   ->35073944 [ Used: 7883200 ] [ Freed:        0]
    Memory Usage: 31856624   ->39740176 [ Used: 7883552 ] [ Freed:  3217320]
    Memory Usage: 39740176   ->47623040 [ Used: 7882864 ] [ Freed:        0]
    Memory Usage: 44410480   ->52293864 [ Used: 7883384 ] [ Freed:  3212560]
    Memory Usage: 52293864   ->58569304 [ Used: 6275440 ] [ Freed:        0]
    Memory Usage: 58569304   ->64846400 [ Used: 6277096 ] [ Freed:        0]
    Exception occurred during event dispatching:
    java.lang.OutOfMemoryError: Java heap spacewhen I outcomment the adding of the JButtons the amount of freed memory is 0 in the second run. So my guess is, that there is a problem with freeing the memory for the JTextFields.
    Memory Usage:   447832   -> 6509960 [ Used: 6062128 ] [ Freed:  6332768]
    Memory Usage:   722776   -> 6785632 [ Used: 6062856 ] [ Freed:  5787184]
    ------------ Call from Dialog (memory is not freed) -------------
    Memory Usage:   468880   -> 6770240 [ Used: 6301360 ] [ Freed:  -468880]
    Memory Usage:  6770240   ->13016264 [ Used: 6246024 ] [ Freed:        0]
    Memory Usage: 13016264   ->19297080 [ Used: 6280816 ] [ Freed:        0]
    Memory Usage: 19297080   ->25570152 [ Used: 6273072 ] [ Freed:        0]
    Memory Usage: 25570152   ->31849160 [ Used: 6279008 ] [ Freed:        0]
    Memory Usage: 31849160   ->38124368 [ Used: 6275208 ] [ Freed:        0]
    Memory Usage: 38124368   ->44402072 [ Used: 6277704 ] [ Freed:        0]
    Memory Usage: 44402072   ->50677928 [ Used: 6275856 ] [ Freed:        0]
    Memory Usage: 50677928   ->56955880 [ Used: 6277952 ] [ Freed:        0]
    Memory Usage: 56955880   ->63232152 [ Used: 6276272 ] [ Freed:        0]
    Exception occurred during event dispatching:
    java.lang.OutOfMemoryError: Java heap spaceAdditionally the JPanel I am using is not displayed on the screen. It stays invisible the whole time, but i cannot work around that, because the calculation is depending on the values being in components on the JPanel)
    Marc

  • Problem with event handling

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    So the code
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    wont work as both the instances would have the label "ChgDir" and have setActionCommand set to 1!!!!
    Actually I have an array of buttons..So I solved the prob by writting a function caled setActionCmdRemote that would just set the action commands of one object of the class differently ..here is the code
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