Get the BitmapData from a class

I'm still new to flash and flex. I have a png that I'm using defined like this
[Embed("/assets/GreenSpot.png")]
private var pngGreenSpot:Class;
Is there a way to get the bitmapData from that?
Thanks,
Bubba

Turned out to be not exactly what I wanted but it's close enough.
Thanks,
Bubba

Similar Messages

Get the values from Exception class

Hi all ..
In class i have raised one exception
when i catch this exception in my program i m able to get the
error message but i need to get all the parameters that i pass
when i raise the exception ...
i have raised like this
      RAISE EXCEPTION TYPE cx_bapi_error
        EXPORTING
          textid = cx_bapi_error=>cx_bo_error
          class_name = 'ZHS_'
          log_no = wa_bapi_return-log_no
          log_msg_no = wa_bapi_return-log_msg_no
          t100_msgid = wa_bapi_return-id
          t100_msgno = wa_bapi_return-number
          t100_msgv1 = wa_bapi_return-message_v1
          t100_msgv2 = wa_bapi_return-message_v2
          t100_msgv3 = wa_bapi_return-message_v3
          t100_msgv4 = wa_bapi_return-message_v4
          STATUS = lt_status
and caught the exception like this in my program
    CATCH cx_bapi_error INTO go_error.
      gd_text = go_error->get_text( ).
      EXIT.
ENDTRY.
in this i m just getting the class name which i have passed in exception
i need all other parameters that i have passed ..
if u have any idea pls let me know ..
Thanks in advance ...

Hello Jayakumar
Usually the attributes of standard exception classes are defines as <b>public</b> and <b>read-only</b>. Thus, you should be able to use the following coding:
DATA:
go_error   TYPE REF TO cx_bapi_error. " specific exception class !!!
TRY.
RAISE EXCEPTION TYPE cx_bapi_error
EXPORTING
textid = cx_bapi_error=>cx_bo_error
class_name = 'ZHS_'
log_no = wa_bapi_return-log_no
log_msg_no = wa_bapi_return-log_msg_no
t100_msgid = wa_bapi_return-id
t100_msgno = wa_bapi_return-number
t100_msgv1 = wa_bapi_return-message_v1
t100_msgv2 = wa_bapi_return-message_v2
t100_msgv3 = wa_bapi_return-message_v3
t100_msgv4 = wa_bapi_return-message_v4
STATUS = lt_status.
CATCH cx_bapi_error INTO go_error.
gd_text = go_error->get_text( ).
WRITE: go_error->t100_msgid, " perhaps the attributes have different name
            go_error->t100_msgno, " check attribute names in SE24
EXIT.
ENDTRY.
Regards
Uwe

XML reader and get the value from another class

Hello to all, I have stupid question.
I have main.java and ConfigXML.java(read my config xml file).
Code from ConfigXML.java
NodeList flnamelist = flcon.getElementsByTagName("filename");
Element flnameEL= (Element)flnamelist.item(0);
NodeList flnameTEXT = flnameEL.getChildNodes();
String alsl = ((Node)flnameTEXT.item(0)).getNodeValue().trim();How I can get String alsl = ((Node)flnameTEXT.item(0)).getNodeValue().trim(); from my ConfigXML.java to main.java.
Sorry for my bad english

public class ConfigXML {
private String alsl;
// constructor goes here if necessary
public void parse() {
    // something
    NodeList flnamelist = flcon.getElementsByTagName("filename");
    Element flnameEL= (Element)flnamelist.item(0);
    NodeList flnameTEXT = flnameEL.getChildNodes();
    alsl = ((Node)flnameTEXT.item(0)).getNodeValue().trim();
    // Notice that we assigned the data to an instance variable
public String getAlsl() {
    return alsl;
public class Main {
// That's a really terrible name but at least let's capitalize it so it's standard
public static void main(String[] args) {
    ConfigXML config = new ConfigXML();
    config.parse();
    String answer = config.getAlsl();
}

How to get the message from a Runnable class

The Schedule class is actually a JFrame, what I want to do is to "get" the message from Scheduler Class and display it in a JTextField, to let user know what is doing.
How can I approach this?
public class Schedule {
    @SuppressWarnings("static-access")
    public static void main(String args[]) throws InterruptedException {
        final Scheduler s = new Scheduler();
        Thread t = new Thread(s);
        t.start();
public class Scheduler implements Runnable{
private static int actionType;
private static String msg;
    public static void setMsg(String msg) {
        Scheduler.msg = msg;
    public static String getMsg() {
        return msg;
    public void run() {
        //System.out.println((int)(Math.random() * 1000));
        actionType = 1;
        while(true){
            try {
                switch(actionType){
                    case 1:
                        setMsg("Process actionType: "+actionType);
                        break;
                        case 2:
                        Thread.sleep(2000L);
                        setMsg("Process actionType: "+actionType);
                        break;
                        case 3:
                        Thread.sleep(2000L);
                        setMsg("Process actionType: "+actionType);
                        break;
                        case 4:
                        Thread.sleep(2000L);
                        setMsg("Process actionType: "+actionType);
                        break;
                actionType++;
                if(actionType>4){
                    actionType = 1;
            } catch (InterruptedException ex) {
                System.out.println("Scheduler.run:"+ex.toString());
}

Or with only one loop:
        int actionType = 0;
        while (true)
            actionType = (actionType % 4) + 1;
            msg = "Process actionType: " + actionType;
            try
                Thread.sleep(2000L);
            catch (InterruptedException ex)
                System.out.println("Scheduler.run:" + ex.toString());
        }

Htmlb:get the values from bean n display it in textView

Hi,
I am doing one PDK application using jspdyn page. In jsp page I am using htmlb to display the table. In that I am using one text view element. There I need to get the values from bean class.And display it in a table.
Can anyone help me how can use the textView inside htmlb to retrieve the values from bean.
Thanks & Regards
Vineela

hi vineela,
For the textView, in the text value write the code <%=myBean.getStr()%>
where myBean will be your bean class and getStr() is the method in the bean class whcih returns value which needs to be displayed on the screen.
Thanks
Harsimran

NullPointerException - Cannot get the value from variable f_cashGiven

In SubCheckout.java (a POS), what I want is when Payment button (f_cashPayment) is pressed, the action "Cash" is performed, get the value from Cash Given (f_cashGiven), do the subtraction and post the value as Cash Return (f_cashReturn). The code is filled in actionPerformed. But I cannot get the value by using f_cashGiven.getValue() from VNumber class. It returns NULL. This should be quite straight forward, but I do not know what is wrong. Please help!
Enclosed please find the source code of SubCheckout.java and VNumber.java
This is the code of SubCheckout.java :
* The contents of this file are subject to the   Compiere License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* You may obtain a copy of the License at http://www.compiere.org/license.html
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
* The Original Code is Compiere ERP & CRM Smart Business Solution. The Initial
* Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
* are Copyright (C) 1999-2005 Jorg Janke.
* All parts are Copyright (C) 1999-2005 ComPiere, Inc. All Rights Reserved.
* Contributor(s): ______________________________________.
package org.compiere.pos;
import java.awt.*;
import java.awt.event.*;
import java.math.BigDecimal;
import javax.swing.border.*;
import org.compiere.grid.ed.*;
import org.compiere.swing.*;
import org.compiere.util.*;
*     POS Checkout Sub Panel
* @author Jorg Janke
* @version $Id: SubCheckout.java,v 1.3 2005/03/11 20:28:22 jjanke Exp $
public class SubCheckout extends PosSubPanel implements ActionListener
      *      Constructor
      *     @param posPanel POS Panel
     public SubCheckout (PosPanel posPanel)
          super (posPanel);
     }     //     PosSubCheckout
     private CButton f_register = null;
     private CButton f_summary = null;
     private CButton f_process = null;
     private CButton f_print = null;
     private CLabel f_lcreditCardNumber = null;
     private CTextField f_creditCardNumber = null;
     private CLabel f_lcreditCardExp = null;
     private CTextField f_creditCardExp = null;
     private CLabel f_lcreditCardVV = null;
     private CTextField f_creditCardVV = null;
     private CButton f_cashPayment = null;
     private CLabel f_lcashGiven = null;
     private VNumber f_cashGiven = null;
     private CLabel f_lcashReturn = null;
     private VNumber f_cashReturn = null;
     private CButton f_creditPayment = null;
     /**     Logger               */
     private static CLogger log = CLogger.getCLogger(SubCheckout.class);
      *      Initialize
     public void init()
          //     Title
          TitledBorder border = new TitledBorder(Msg.getMsg(Env.getCtx(), "Checkout"));
          setBorder(border);
          //     Content
          setLayout(new GridBagLayout());
          GridBagConstraints gbc = new GridBagConstraints();
          gbc.insets = INSETS2;
          //     --     0
          gbc.gridx = 0;
          f_register = createButtonAction("Register", null);
          gbc.gridy = 0;
          add (f_register, gbc);
          f_summary = createButtonAction("Summary", null);
          gbc.gridy = 1;
          add (f_summary, gbc);
          f_process = createButtonAction("Process", null);
          gbc.gridy = 2;
          add (f_process, gbc);
          f_print = createButtonAction("Print", null);
          gbc.gridy = 3;
          add (f_print, gbc);
          //     --     1 -- Cash
          gbc.gridx = 1;
          gbc.gridheight = 2;
          gbc.fill = GridBagConstraints.BOTH;
          gbc.weightx = .1;
          CPanel cash = new CPanel(new GridBagLayout());
          cash.setBorder(new TitledBorder(Msg.getMsg(Env.getCtx(), "Cash")));
          gbc.gridy = 0;
          add (cash, gbc);
          GridBagConstraints gbc0 = new GridBagConstraints();
          gbc0.insets = INSETS2;
          gbc0.anchor = GridBagConstraints.WEST;
          f_lcashGiven = new CLabel(Msg.getMsg(Env.getCtx(),"CashGiven"));
          cash.add (f_lcashGiven, gbc0);
          f_cashGiven = new VNumber("CashGiven", false, false, true, DisplayType.Amount,
               Msg.translate(Env.getCtx(), "CashGiven"));
          f_cashGiven.addActionListener(this);
          f_cashGiven.setColumns(10, 25);
          cash.add (f_cashGiven, gbc0);
          f_cashGiven.setValue(Env.ZERO);
          f_lcashReturn = new CLabel(Msg.getMsg(Env.getCtx(),"CashReturn"));
          cash.add (f_lcashReturn, gbc0);
          f_cashReturn = new VNumber("CashReturn", false, true, false, DisplayType.Amount,
               "CashReturn");
          f_cashReturn.setColumns(10, 25);
          cash.add (f_cashReturn, gbc0);
          f_cashReturn.setValue(Env.ZERO);
          f_cashPayment = createButtonAction("Payment", null);
          f_cashPayment.setActionCommand("Cash");
          gbc0.anchor = GridBagConstraints.EAST;
          gbc0.weightx = 0.1;
          cash.add (f_cashPayment, gbc0);
          //     --     1 -- Creditcard
          CPanel creditcard = new CPanel(new GridBagLayout());
          creditcard.setBorder(new TitledBorder(Msg.translate(Env.getCtx(), "CreditCardType")));
          gbc.gridy = 2;
          add (creditcard, gbc);
          GridBagConstraints gbc1 = new GridBagConstraints();
          gbc1.insets = INSETS2;
          gbc1.anchor = GridBagConstraints.WEST;
          gbc1.gridx = 0;
          gbc1.gridy = 0;
          f_lcreditCardNumber = new CLabel(Msg.translate(Env.getCtx(), "CreditCardNumber"));
          creditcard.add (f_lcreditCardNumber, gbc1);
          gbc1.gridy = 1;
          f_creditCardNumber = new CTextField(18);
          creditcard.add (f_creditCardNumber, gbc1);
          gbc1.gridx = 1;
          gbc1.gridy = 0;
          f_lcreditCardExp = new CLabel(Msg.translate(Env.getCtx(),"CreditCardExp"));
          creditcard.add (f_lcreditCardExp, gbc1);
          gbc1.gridy = 1;
          f_creditCardExp = new CTextField(5);
          creditcard.add (f_creditCardExp, gbc1);
          gbc1.gridx = 2;
          gbc1.gridy = 0;
          f_lcreditCardVV = new CLabel(Msg.translate(Env.getCtx(), "CreditCardVV"));
          creditcard.add (f_lcreditCardVV, gbc1);
          gbc1.gridy = 1;
          f_creditCardVV = new CTextField(5);
          creditcard.add (f_creditCardVV, gbc1);
          gbc1.gridx = 3;
          gbc1.gridy = 0;
          gbc1.gridheight = 2;
          f_creditPayment = createButtonAction("Payment", null);
          f_creditPayment.setActionCommand("CreditCard");
          gbc1.anchor = GridBagConstraints.EAST;
          gbc1.weightx = 0.1;
          creditcard.add (f_creditPayment, gbc1);
     }     //     init
      *      Get Panel Position
     public GridBagConstraints getGridBagConstraints()
          GridBagConstraints gbc = super.getGridBagConstraints();
          gbc.gridx = 0;
          gbc.gridy = 3;
          return gbc;
     }     //     getGridBagConstraints
      *      Dispose - Free Resources
     public void dispose()
          super.dispose();
     }     //     dispose
      *      Action Listener
      *     @param e event
     public void actionPerformed (ActionEvent e)
          String action = e.getActionCommand();
          if (action == null || action.length() == 0)
               return;
          log.info( "PosSubCheckout - actionPerformed: " + action);
          if (e.getSource() == f_cashGiven) {
               f_cashGiven.setValue(f_cashGiven.getValue());
               System.out.println("f_cashGiven"+f_cashGiven.getDisplay());
          //     Register
          //     Summary
          //     Print
          if (action.equals("Cash")) {
               BigDecimal CashGiven, GrandTotal, CashReturn;
               System.out.println("Cash given is "+f_cashGiven.getDisplay());
               CashGiven = (BigDecimal)f_cashGiven.getValue();
               GrandTotal = (BigDecimal)p_posPanel.f_curLine.getOrder().getGrandTotal();
               CashReturn = CashGiven.subtract(GrandTotal);
               f_cashReturn.setValue(CashReturn);
          //     Cash (Payment)
          //     CreditCard (Payment)
     }     //     actionPerformed
}     //     PosSubCheckoutThis is the code of VNumber.java :
* The contents of this file are subject to the   Compiere License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* You may obtain a copy of the License at http://www.compiere.org/license.html
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
* The Original Code is Compiere ERP & CRM Smart Business Solution. The Initial
* Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
* are Copyright (C) 1999-2005 Jorg Janke.
* All parts are Copyright (C) 1999-2005 ComPiere, Inc. All Rights Reserved.
* Contributor(s): ______________________________________.
package org.compiere.grid.ed;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.math.*;
import java.text.*;
import java.util.logging.*;
import javax.swing.*;
import javax.swing.text.*;
import org.compiere.apps.*;
import org.compiere.model.*;
import org.compiere.swing.*;
import org.compiere.util.*;
*     Number Control
*      @author      Jorg Janke
*      @version      $Id: VNumber.java,v 1.41 2005/09/03 01:57:16 jjanke Exp $
public final class VNumber extends JComponent
     implements VEditor, ActionListener, KeyListener, FocusListener
     /**     Number of Columns (12)          */
     public final static int SIZE = 12;
      * IDE Bean Constructor
     public VNumber()
          this("Number", false, false, true, DisplayType.Number, "Number");
     }   // VNumber
      *     Create right aligned Number field.
      *     no popup, if WindowNo == 0 (for IDs)
      * @param columnName column name
      * @param mandatory mandatory
      * @param isReadOnly read only
      * @param isUpdateable updateable
      * @param displayType display type
      * @param title title
     public VNumber(String columnName, boolean mandatory, boolean isReadOnly, boolean isUpdateable,
          int displayType, String title)
          super();
          super.setName(columnName);
          m_columnName = columnName;
          m_title = title;
          setDisplayType(displayType);
          LookAndFeel.installBorder(this, "TextField.border");
          this.setLayout(new BorderLayout());
//          this.setPreferredSize(m_text.getPreferredSize());          //     causes r/o to be the same length
//          int height = m_text.getPreferredSize().height;
//          setMinimumSize(new Dimension (30,height));
          //     ***     Text     ***
          m_text.setBorder(null);
          m_text.setHorizontalAlignment(JTextField.TRAILING);
          m_text.addKeyListener(this);
          m_text.addFocusListener(this);
          //     Background
          setMandatory(mandatory);
          this.add(m_text, BorderLayout.CENTER);
          //     ***     Button     ***
          m_button.setIcon(Env.getImageIcon("Calculator10.gif"));
          m_button.setMargin(new Insets(0, 0, 0, 0));
          m_button.setFocusable(false);
          m_button.addActionListener(this);
          this.add (m_button, BorderLayout.EAST);
          //     Prefereed Size
          this.setPreferredSize(this.getPreferredSize());          //     causes r/o to be the same length
          // Size
          setColumns(SIZE, CComboBox.FIELD_HIGHT-4);
          //     ReadWrite
          if (isReadOnly || !isUpdateable)
               setReadWrite(false);
          else
               setReadWrite(true);
     }     //     VNumber
      * Dispose
     public void dispose()
          m_text = null;
          m_button = null;
          m_mField = null;
     }   // dispose
      *     Set Document
      * @param doc document
     protected void setDocument(Document doc)
          m_text.setDocument(doc);
     }     //     getDocument
     private String               m_columnName;
     protected int               m_displayType;     // Currency / UoM via Context
     private DecimalFormat     m_format;
     private String               m_title;
     private boolean               m_setting;
     private String               m_oldText;
     private String               m_initialText;
     private boolean               m_rangeSet = false;
     private Double               m_minValue;
     private Double               m_maxValue;
     private boolean               m_modified = false;
     /** The Field                  */
     private CTextField          m_text = new CTextField(SIZE);     //     Standard
     /** The Button                  */
     private CButton              m_button = new CButton();
     private MField          m_mField = null;
     /**     Logger               */
     private static CLogger log = CLogger.getCLogger(VNumber.class);
      *      Set no of Columns
      *     @param columns columns
     public void setColumns (int columns, int height)
          m_text.setPreferredSize(null);
          m_text.setColumns(columns);
          Dimension size = m_text.getPreferredSize();
          if (height > size.height)               //     default 16
               size.height = height;
          if (CComboBox.FIELD_HIGHT-4 > size.height)
               size.height = VLookup.FIELD_HIGHT-4;
          this.setPreferredSize(size);          //     causes r/o to be the same length
          this.setMinimumSize(new Dimension (columns*10, size.height));
          m_button.setPreferredSize(new Dimension(size.height, size.height));
     }     //     setColumns
      *     Set Range with min & max
      * @param minValue min value
      * @param maxValue max value
      *     @return true, if accepted
     public boolean setRange(Double minValue, Double maxValue)
          m_rangeSet = true;
          m_minValue = minValue;
          m_maxValue = maxValue;
          return m_rangeSet;
     }     //     setRange
      *     Set Range with min & max = parse US style number w/o Gouping
      * @param minValue min value
      * @param maxValue max value
      * @return true if accepted
     public boolean setRange(String minValue, String maxValue)
          if (minValue == null || maxValue == null)
               return false;
          try
               m_minValue = Double.valueOf(minValue);
               m_maxValue = Double.valueOf(maxValue);
          catch (NumberFormatException nfe)
               return false;
          m_rangeSet = true;
          return m_rangeSet;
     }     //     setRange
      * Set and check DisplayType
      * @param displayType display type
     public void setDisplayType (int displayType)
          m_displayType = displayType;
          if (!DisplayType.isNumeric(displayType))
               m_displayType = DisplayType.Number;
          m_format = DisplayType.getNumberFormat(displayType);
          m_text.setDocument (new MDocNumber(displayType, m_format, m_text, m_title));
     }   // setDisplayType
      *     Set ReadWrite
      * @param value value
     public void setReadWrite (boolean value)
          if (m_text.isReadWrite() != value)
               m_text.setReadWrite(value);
          if (m_button.isReadWrite() != value)
               m_button.setReadWrite(value);
          //     Don't show button if not ReadWrite
          if (m_button.isVisible() != value)
               m_button.setVisible(value);
     }     //     setReadWrite
      *     IsReadWrite
      * @return true if rw
     public boolean isReadWrite()
          return m_text.isReadWrite();
     }     //     isReadWrite
      *     Set Mandatory (and back bolor)
      * @param mandatory mandatory
     public void setMandatory (boolean mandatory)
          m_text.setMandatory(mandatory);
     }     //     setMandatory
      *     Is it mandatory
      * @return true if mandatory
     public boolean isMandatory()
          return m_text.isMandatory();
     }     //     isMandatory
      *     Set Background
      * @param color color
     public void setBackground(Color color)
          m_text.setBackground(color);
     }     //     setBackground
      *     Set Background
      * @param error error
     public void setBackground (boolean error)
          m_text.setBackground(error);
     }     //     setBackground
      * Set Foreground
      * @param fg foreground
     public void setForeground(Color fg)
          m_text.setForeground(fg);
     }   // setForeground
      *     Set Editor to value
      * @param value value
     public void setValue(Object value)
          log.finest("Value=" + value);
          if (value == null)
               m_oldText = "";
          else
               m_oldText = m_format.format(value);
          //     only set when not updated here
          if (m_setting)
               return;
          m_text.setText (m_oldText);
          m_initialText = m_oldText;
          m_modified = false;
     }     //     setValue
      * Property Change Listener
      * @param evt event
     public void propertyChange (PropertyChangeEvent evt)
          if (evt.getPropertyName().equals(org.compiere.model.MField.PROPERTY))
               setValue(evt.getNewValue());
     }   // propertyChange
      *     Return Editor value
      * @return value value (big decimal or integer)
     public Object getValue()
          if (m_text == null || m_text.getText() == null || m_text.getText().length() == 0)
               return null;
          String value = m_text.getText();
          //     return 0 if text deleted
          if (value == null || value.length() == 0)
               if (!m_modified)
                    return null;
               if (m_displayType == DisplayType.Integer)
                    return new Integer(0);
               return Env.ZERO;
          if (value.equals(".") || value.equals(",") || value.equals("-"))
               value = "0";
          try
               Number number = m_format.parse(value);
               value = number.toString();      //     converts it to US w/o thousands
               BigDecimal bd = new BigDecimal(value);
               if (m_displayType == DisplayType.Integer)
                    return new Integer(bd.intValue());
               if (bd.signum() == 0)
                    return bd;
               return bd.setScale(m_format.getMaximumFractionDigits(), BigDecimal.ROUND_HALF_UP);
          catch (Exception e)
               log.log(Level.SEVERE, "Value=" + value, e);
          if (m_displayType == DisplayType.Integer)
               return new Integer(0);
          return Env.ZERO;
     }     //     getValue
      * Return Display Value
      * @return value
     public String getDisplay()
          return m_text.getText();
     }   // getDisplay
      *      Get Title
      *     @return title
     public String getTitle()
          return m_title;
     }     //     getTitle
      *      Plus - add one.
      *      Also sets Value
      *     @return new value
     public Object plus()
          Object value = getValue();
          if (value == null)
               if (m_displayType == DisplayType.Integer)
                    value = new Integer(0);
               else
                    value = Env.ZERO;
          //     Add
          if (value instanceof BigDecimal)
               value = ((BigDecimal)value).add(Env.ONE);
          else
               value = new Integer(((Integer)value).intValue() + 1);
          setValue(value);
          return value;
     }     //     plus
      *      Minus - subtract one, but not below minimum.
      *      Also sets Value
      *     @param minimum minimum
      *     @return new value
     public Object minus (int minimum)
          Object value = getValue();
          if (value == null)
               if (m_displayType == DisplayType.Integer)
                    value = new Integer(minimum);
               else
                    value = new BigDecimal(minimum);
               setValue(value);
               return value;
          //     Subtract
          if (value instanceof BigDecimal)
               BigDecimal bd = ((BigDecimal)value).subtract(Env.ONE);
               BigDecimal min = new BigDecimal(minimum);
               if (bd.compareTo(min) < 0)
                    value = min;
               else
                    value = bd;
          else
               int i = ((Integer)value).intValue();
               i--;
               if (i < minimum)
                    i = minimum;
               value = new Integer(i);
          setValue(value);
          return value;
     }     //     minus
      *     Action Listener
      * @param e event
     public void actionPerformed (ActionEvent e)
          log.config(e.getActionCommand());
          if (ValuePreference.NAME.equals(e.getActionCommand()))
               if (MRole.getDefault().isShowPreference())
                    ValuePreference.start (m_mField, getValue());
               return;
          if (e.getSource() == m_button)
               m_button.setEnabled(false);
               String str = startCalculator(this, m_text.getText(), m_format, m_displayType, m_title);
               m_text.setText(str);
               m_button.setEnabled(true);
               try
                    fireVetoableChange (m_columnName, m_oldText, getValue());
               catch (PropertyVetoException pve)     {}
               m_text.requestFocus();
     }     //     actionPerformed
      *     Key Listener Interface
      * @param e event
     public void keyTyped(KeyEvent e)    {}
     public void keyPressed(KeyEvent e) {}
      *     Key Listener.
      *          - Escape           - Restore old Text
      *          - firstChange     - signal change
      * @param e event
     public void keyReleased(KeyEvent e)
          log.finest("Key=" + e.getKeyCode() + " - " + e.getKeyChar()
                       + " -> " + m_text.getText());
          // ESC
          if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
               m_text.setText(m_initialText);
          m_modified = true;
          m_setting = true;
          try
               if (e.getKeyCode() == KeyEvent.VK_ENTER)     //     10
                    fireVetoableChange (m_columnName, m_oldText, getValue());
                    fireActionPerformed();
               else     //     indicate change
                    fireVetoableChange (m_columnName, m_oldText, null);
          catch (PropertyVetoException pve)     {}
          m_setting = false;
     }     //     keyReleased
      *     Focus Gained
      * @param e event
     public void focusGained (FocusEvent e)
          if (m_text != null)
               m_text.selectAll();
     }     //     focusGained
      *     Data Binding to MTable (via GridController.vetoableChange).
      * @param e event
     public void focusLost (FocusEvent e)
     //          log.finest(e.toString());
          //     APanel - Escape
          if (e.getOppositeComponent() instanceof AGlassPane)
               m_text.setText(m_initialText);
               return;
          try
               fireVetoableChange (m_columnName, m_initialText, getValue());
               fireActionPerformed();
          catch (PropertyVetoException pve)     {}
     }   // focusLost
      *     Invalid Entry - Start Calculator
      * @param jc parent
      * @param value value
      * @param format format
      * @param displayType display type
      * @param title title
      * @return value
     public static String startCalculator(Container jc, String value,
          DecimalFormat format, int displayType, String title)
          log.config("Value=" + value);
          BigDecimal startValue = new BigDecimal(0.0);
          try
               if (value != null && value.length() > 0)
                    Number number = format.parse(value);
                    startValue = new BigDecimal (number.toString());
          catch (ParseException pe)
               log.info("InvalidEntry - " + pe.getMessage());
          //     Find frame
          Frame frame = Env.getFrame(jc);
          //     Actual Call
          Calculator calc = new Calculator(frame, title,
               displayType, format, startValue);
          AEnv.showCenterWindow(frame, calc);
          BigDecimal result = calc.getNumber();
          log.config( "Result=" + result);
          calc = null;
          if (result != null)
               return format.format(result);
          else
               return value;          //     original value
     }     //     startCalculator
      * Set Field/WindowNo for ValuePreference
      * @param mField field
     public void setField (MField mField)
          m_mField = mField;
          if (m_mField != null
               && MRole.getDefault().isShowPreference())
               ValuePreference.addMenu (this, popupMenu);
     }   // setField
      *      Remove Action Listner
      *      @param l Action Listener
     public void removeActionListener(ActionListener l)
          listenerList.remove(ActionListener.class, l);
     }     //     removeActionListener
      *      Add Action Listner
      *      @param l Action Listener
     public void addActionListener(ActionListener l)
          listenerList.add(ActionListener.class, l);
     }     //     addActionListener
      *      Fire Action Event to listeners
     protected void fireActionPerformed()
          int modifiers = 0;
          AWTEvent currentEvent = EventQueue.getCurrentEvent();
          if (currentEvent instanceof InputEvent)
               modifiers = ((InputEvent)currentEvent).getModifiers();
          else if (currentEvent instanceof ActionEvent)
               modifiers = ((ActionEvent)currentEvent).getModifiers();
          ActionEvent ae = new ActionEvent (this, ActionEvent.ACTION_PERFORMED,
               "VNumber", EventQueue.getMostRecentEventTime(), modifiers);
          // Guaranteed to return a non-null array
          Object[] listeners = listenerList.getListenerList();
          // Process the listeners last to first, notifying those that are interested in this event
          for (int i = listeners.length-2; i>=0; i-=2)
               if (listeners==ActionListener.class)
                    ((ActionListener)listeners[i+1]).actionPerformed(ae);
     }     //     fireActionPerformed
}     //     VNumber

If getValue() returns null, you need to trace the execution of the code and figure out which sequence of code is leading to the return of null. This method looks complex - a lot of if statements. If you do not have a debugger, put System.out.println statements inside the method to figure out what's going on.

Swing: when trying to get the values from a JTable inside an event handler

Hi,
I am trying to write a graphical interface to compute the Gauss Elimination procedure for solving linear systems. The class for computing the output of a linear system already works fine on console mode, but I am fighting a little bit to make it work with Swing.
I put two buttons (plus labels) and a JTextField . The buttons have the following role:
One of them gets the value from the JTextField and it will be used to the system dimension. The other should compute the solution. I also added a JTable so that the user can type the values in the screen.
So whenever the user hits the button Dimensiona the program should retrieve the values from the table cells and pass them to a 2D Array. However, the program throws a NullPointerException when I try to
do it. I have put the code for copying this Matrix inside a method and I call it from the inner class event handler.
I would thank you very much for the help.
Daniel V. Gomes
here goes the code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import AdvanceMath.*;
public class MathF2 extends JFrame {
private JTextField ArrayOfFields[];
private JTextField DimOfSis;
private JButton Calcular;
private JButton Ativar;
private JLabel label1;
private JLabel label2;
private Container container;
private int value;
private JTable DataTable;
private double[][] A;
private double[] B;
private boolean dimensionado = false;
private boolean podecalc = false;
public MathF2 (){
super("Math Calcs");
Container container = getContentPane();
container.setLayout( new FlowLayout(FlowLayout.CENTER) );
Calcular = new JButton("Resolver");
Calcular.setEnabled(false);
Ativar = new JButton("Dimensionar");
label1 = new JLabel("Clique no bot�o para resolver o sistema.");
label2 = new JLabel("Qual a ordem do sistema?");
DimOfSis = new JTextField(4);
DimOfSis.setText("0");
JTable DataTable = new JTable(10,10);
container.add(label2);
container.add(DimOfSis);
container.add(Ativar);
container.add(label1);
container.add(Calcular);
container.add(DataTable);
for ( int i = 0; i < 10 ; i ++ ){
for ( int j = 0 ; j < 10 ; j++) {
DataTable.setValueAt("0",i,j);
myHandler handler = new myHandler();
Calcular.addActionListener(handler);
Ativar.addActionListener(handler);
setSize( 500 , 500 );
setVisible( true );
public static void main ( String args[] ){
MathF2 application = new MathF2();
application.addWindowListener(
new WindowAdapter(){
public void windowClosing (WindowEvent event)
System.exit( 0 );
private class myHandler implements ActionListener {
public void actionPerformed ( ActionEvent event ){
if ( event.getSource()== Calcular ) {
if ( event.getSource()== Ativar ) {
//dimensiona a Matriz A
if (dimensionado == false) {
if (DimOfSis.getText()=="0") {
value = 2;
} else {
value = Integer.parseInt(DimOfSis.getText());
dimensionado = true;
Ativar.setEnabled(false);
System.out.println(value);
} else {
Ativar.setEnabled(false);
Calcular.setEnabled(true);
podecalc = true;
try {
InitValores( DataTable, value );
} catch (Exception e) {
System.out.println("Erro ao criar matriz" + e );
private class myHandler2 implements ItemListener {
public void itemStateChanged( ItemEvent event ){
private void InitValores( JTable table, int n ) {
A = new double[n][n];
B = new double[n];
javax.swing.table.TableModel model = table.getModel();
for ( int i = 0 ; i < n ; i++ ){
for (int j = 0 ; j < n ; j++ ){
Object temp1 = model.getValueAt(i,j);
String temp2 = String.valueOf(temp1);
A[i][j] = Double.parseDouble(temp2);

What I did is set up a :
// This code will setup a listener for the table to handle a selection
players.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowSM = players.getSelectionModel();
rowSM.addListSelectionListener(new Delete_Player_row_Selection(this));
//Class will take the event and call a method inside the Delete_Player object.
class Delete_Player_row_Selection
implements javax.swing.event.ListSelectionListener
Delete_Player adaptee;
Delete_Player_row_Selection (Delete_Player temp)
adaptee = temp;
public void valueChanged (ListSelectionEvent listSelectionEvent)
adaptee.row_Selection(listSelectionEvent);
in the row_Selection function
if(ex.getValueIsAdjusting()) //To remove double selection
return;
ListSelectionModel lsm = (ListSelectionModel) ex.getSource();
if(lsm.isSelectionEmpty())
System.out.println("EMtpy");
else
int selected_row = lsm.getMinSelectionIndex();
ResultSetTableModel model = (ResultSetTableModel) players.getModel();
String name = (String) model.getValueAt(selected_row, 1);
Integer id = (Integer) model.getValueAt(selected_row, 3);
This is how I got info out of a table when the user selected it

How to get the value from a database without submitting a jsp page

I have a jsp which has a text box depending on the value entered I want to get the value from a database for other two fields with out submitting jsp page. I am using struts.
Thanks For any assistance provided.

Alright,here is an example for you for the first case.
Present.jsp:
============
<html:html>
<head>
<title><html:message key="page.title"/></title>
</head>
<body>
<html:form action="ChangeEvent.do">
<html:hidden property="method"/>

Emp Id:<html:text property="empId" size="5" onkeyup="if(true){this.form.elements[0].value='populateDetails';this.form.submit();}"/>
Emp Name:<html:text property="empName" size="10" />
Email Address:<html:text property="email" size="10" />
<html:submit>Submit</html:submit>
</html:form>
</body>
</html:html>struts-config.xml:
==================
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

<form-beans>
<form-bean name="employeeFormBean" type="org.apache.struts.action.DynaActionForm">
   <form-property name="empId" type="java.lang.String"/>
   <form-property name="empName" type="java.lang.String"/>
   <form-property name="email" type="java.lang.String" />
</form-bean>
</form-bean>
<action-mappings>
<action path="/ChangeEvent" type="Test.GetChangeAction" name="employeeFormBean" scope="request" parameter="method">

<forward name="success" path="/Present.jsp"></forward>
<forward name="failed" path="/error.jsp"></forward>
</action>
</action-mappings>
</struts-config>GetChangeAction.java:
=====================
public class GetChangeAction extends DispatchAction{
public ActionForward populateDetails(ActionMapping mapping,ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
        DynaActionForm dForm = (DynaActionForm)form;
        String empId = dForm.get("empId");
        // calling Model / Db and then getting back Employee Details
        EmployeeBean eb = ModelUtils.getDetails(empId);
        // Updating form bean by updating values from the Model
        dForm.set("empName".eb.getEmpName());
        dForm.set("email".eb.getEmail());
        return mapping.findForward("success");
}well to me this should work regardless to any browser but we need to make sure we put in our logic properly.

How to get the values from html:select? tag..?

i tried with this, but its not working...
<html:select styleClass="text" name="querydefs" property="shortcut"
             onchange="retrieveOptions()" styleId="firstBox" indexed="true">
<html:options collection="advanced.choices" property="shortcut" labelProperty="label" />
</html:select>
                    <td align="left" class="rowcolor1">
                    <script language="javascript" type="text/javascript">
                          function retrieveOptions(){
                         var sel = document.querydefs.options;
                         var selectedOption = sel[sel.selectedIndex].value;
                         document.write(selectedOption);
                       </script>

<td align="left" class="rowcolor1">
                    <script language="javascript" type="text/javascript">
                          function retrieveOptions(){
                         var sel = document.querydefs.options;
                         var selectedOption = sel[sel.selectedIndex].value;
                         document.write(selectedOption);
                       </script>This java script is not working at all..its not printing anything in document.write();
This is code..
<td class="rowcolor1" width="20%">
<html:select styleClass="text" name="querydefs" property="shortcut"
                         onchange="retrieveSecondOptions()" styleId="firstBox"
                         indexed="true">
                         <html:options collection="advanced.choices" property="shortcut"
                              labelProperty="label" />
                    </html:select>i tried with this also. but no use..i'm not the getting the seleced option...
function retrieveOptions(){
firstBox = document.getElementById('firstBox');
                         if(firstBox.selectedIndex==0){
      return;
    selectedOption = firstBox.options[firstBox.selectedIndex].value;
}actually , how to get the values from <html:select> ...?
my idea is to know which value is selected from the combo box(<html:select> ) if that value is equal some string i have enable a hyperlink to open a popup window

The problem here is i am not able to get the data from the list

hi all,
i have the following code
EnrichedProductCatalogue enrichedProductCatalogue1 = new EnrichedProductCatalogue();
enrichedProductCatalogue1.setAssetCount(2);
enrichedProductCatalogue1.setBlockingProduct("Weekend Freebee");
enrichedProductCatalogue1.setBlockingReason("Compatability");
ArrayList<String> availableActionsList = new ArrayList<String>();
availableActionsList.add(EnrichedProductConstants.ADD.toString());
availableActionsList.add(EnrichedProductConstants.REMOVE.toString());
enrichedProductCatalogue1.setAvailaibleActions((ArrayList<String>)availableActionsList);
BundleProduct bundleProduct = null;
Product product = new Product();
product = new Product();
product.setProductName("International");
product.setProductClassName("International");
ArrayList<UiCategory> uiCategory = new ArrayList<UiCategory>();
UiCategory uiCategory1 = new UiCategory();
uiCategory1.setCategoryName("Simply");
UiCategory uiCategory2 = new UiCategory();
uiCategory2.setCategoryName("Freebees");
uiCategory.add(uiCategory1);
uiCategory.add(uiCategory2);
product.setUiCategory(uiCategory);
bundleProduct = new BundleProduct();
bundleProduct.setCommercialProduct(product);
enrichedProductCatalogue1.setBundleProduct(bundleProduct);
listOfEnrichProducts.add(enrichedProductCatalogue1);
listOfEnrichProducts.add(enrichedProductCatalogue1);
here i have an list called listOfEnrichProducts.
here i am adding two objects of enrichedProductCatalogue.
which contains a object called BundleProduct.
which has a reference for Product class.
here this product class has a list which contains objects of another class called UiCategory.
the problem here is i am not able to get the data from the list which contains UiCategory objects .
the following is the UI
<af:table var="row" rowBandingInterval="0" id="t1"
value="#{pageFlowScope.sample1}"
binding="#{pageFlowScope.sampleManagedBean.dataTable}"
partialTriggers="apimethods ::apimethods">
<af:column sortable="false" headerText="ProductName" id="c2">
<af:outputText value="#{row.bundleProduct.commercialProduct.productName}" id="ot15"/>
</af:column>
<af:column sortable="false" headerText="ProductClass" id="c12">
<af:outputText value="#{row.bundleProduct.commercialProduct.productClassName}" id="ot19"/>
</af:column>

<af:column sortable="false" headerText="AssetCount" id="c22">
<af:outputText value="#{row.assetCount}" id="ot1"/>
</af:column>
<af:column sortable="false" headerText="blockingReason" id="c3">
<af:outputText value="#{row.blockingReason}" id="ot2"/>
</af:column>
<af:column sortable="false" headerText="blockingProduct" id="c4">
<af:outputText value="#{row.blockingProduct}" id="ot3"/>
</af:column>

</af:table>
Can anyone pls give some solution ...

Hi Frank,
value="#{pageFlowScope.sample1}"
here sample is
Map<String, Object> flowScope1 =
ADFContext.getCurrent().getPageFlowScope();
flowScope.put("sample1", listOfEnrichProducts);
this is not the problem . i am able to get all the values except the following .
ArrayList<UiCategory> uiCategory = new ArrayList<UiCategory>();
UiCategory uiCategory1 = new UiCategory();
uiCategory1.setCategoryName("Simply");
UiCategory uiCategory2 = new UiCategory();
uiCategory2.setCategoryName("Freebees");
uiCategory.add(uiCategory1);
uiCategory.add(uiCategory2);
product.setUiCategory(uiCategory);

Have a error in getting the values from database randomly

Hi to all
I am new member to this community and new to java programming, i am the one of them who got benefited through this site , with that hope i am asking u to clear my doubt.
Actually i want to get the data from database randomly, i dont have problem either in database connection and generating random number,its working fine. but when i have to get the data from database with generated random no using absolute function , i am getting an exception
eg : rs.absolute(2);
i could not move to the second row of my result set.
not only absolute function whatever the function i am using except next method, getting exception.
my code :
package practical;
import java.util.*;
import java.sql.*;
public class gen {
     Connection con;
     Statement s;
     ResultSet rs;
     public void get(int t)
          try
               rs.absolute(t);
               String question=rs.getString("question");
               System.out.println("Random question : "+question);
          catch(Exception e)
               System.out.println("get error");
     public void ran()
          Random r=new Random();
               for(int i=0;i<10;i++)
                    int j=r.nextInt(10);
                    System.out.println("random value : "+j);
                    if(j!=0)
                         try
                              get(j);
                         catch(Exception e)
                              System.out.println("ran error");
     public void connect()
          try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               con=DriverManager.getConnection("jdbc:odbc:ds","sa","server");
               s=con.createStatement();
               rs=s.executeQuery("select question from qa");
               ran();
               con.close();
          catch(Exception e)
               System.out.println("error");
     public static void main(String... strins)
          new gen().connect();
}

but i acheived through the code which is pasted below but i have to close the database connection for every iteration.
package practical;
import java.util.*;
import java.sql.*;
public class gen {
     Connection con;
     Statement s;
     ResultSet rs;
     public void get(int t)
          int c=0;
          while(c!=t)
               try
               rs.next();
               c++;
               catch(Exception e)
                    System.out.println("next error");
          if(c==t)
          {     try
                    String question=rs.getString("question");
                    System.out.println("Random question : "+question);
               catch(Exception e)
                    System.out.println("iteration error");
     public void ran()
          Random r=new Random();
               int j=r.nextInt(10);
               System.out.println("random value : "+j);
               if(j!=0)
                    try
                         get(j);
                    catch(Exception e)
                         System.out.println("ran error");
     public void connect()
          try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               con=DriverManager.getConnection("jdbc:odbc:ds","sa","server");
               s=con.createStatement();
               rs=s.executeQuery("select question from qa");
               ran();
               con.close();
          catch(Exception e)
               System.out.println("error");
     public static void main(String... strins)
          for(int i=0;i<10;i++)
               new gen().connect();
}

How to programmatically get the source for a class provided the class name?

Hello,
As a quick background, I am providing some tools to potential users of an in-house framework. One is the ability to generate quick prototypes from our existing demo applications. Assume a user downloads our jars and uses them in their project (we are using Eclipse, but that detail should not greatly affect my question). Included in the jars is a demos package that contains ready-to-run classes that serve to exhibit certain functionality. Since many users may just need quick extensions of these demos, I am trying to provide a way for them to be able to create a new project that starts with a copy of the demo class.
So, the user is provided a list of the existing demos (each one uses a single class). When the user makes their selection, with the knowledge of our framework, I can translate that into what demo class they need (returned as a string of format package.subpack1.subpackn.DemoClassName). What I now want to do is to use that complete class name to get the source (look up the file) for the corresponding class, and copy it into to a new file in their project (the copying into the project can be done easily in Eclipse, so what I need help with is the bolded part). Is there a simple way to get the source given a class path for a class as described above? You may assume the source files are included in the jars for the framework.
Thanks in advance.

If there's a file named "package.subpack1.subpackn.DemoClassName.java" in a "demos" directory in the jar, then yes. You'd just use
InputStream code = getResourceAsStream("/demos.package.subpack1.subpackn.DemoClassName.java");Or if those dots in the name actually separate directory names, i.e. you have a "package" directory under "demos" and a "subpack1" director under that and so on, then:
InputStream code = getResourceAsStream("/demos/package/subpack1/subpackn/DemoClassName.java");

How Can we get the data from Non-SAP to SAP in WebDynpro

Hi,
I hope u understand my query, How can we get the data from Non-SAP to SAP thru WebDynpro Programming.
Help out with the steps for getting the data or procedure.
Regards,
Mutyapu

You can expose the APIs in the Non-SAP backend as Web Services, and consume them in SAP by creating an Enterprise Proxy. Then these can be called just like normal class methods from Web Dynpro.
Regards,
Nithya

How can I get the events from a java program?

I want to make a monitor to watch a java program.How can I get the events from the GUI of this program some as mouse cliking, keyinput. So I can watch these in my monitor.
Thanks

Hi,
To put a monitor to the events occuring in the GHUI u need to register required components with the appropriate EventListeners.
Liek if u want to get notified when a mouse is clicked, then u need to add The MouseListener to the component which u want to be monitored.
Say
myFrame which is the JFrame object which shuld be monitored for the events.
Then in ur program u have to add following code
myFrame.addMouseListener( someObectReference );
Here the someObjectReference should be an instance to a concrete class ..i.e. U write a class like the following
public class MyMouseListener implements MouseListener {
// override the followig methods
public void mouseClicked(MouseEvent me){ sop("MOUSE CLICKED ON THE FRAME");}
public void mousePressed(MouseEvent me){}
public void mouseReleased(MouseEvent me){}
If u dont want to use another class for listening to the events. Then u can make teh current class monitor the events. To do so ur class should implement the appropriate listener and should override the required methods.
and u should say myFrame.addMouseListenet( this );
thats it

Instead of using session How to pass the variable from action class to JSP

Im using Struts1.2 version.Created the Sample application to get the username.Upto action class im getting the username then i have to display the username in the JSP.Is there any options rather than using session variable to display the username.

did you check the answer in your previous thread
Passing Variable from Javascript to Controller

Get the BitmapData from a class

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