Cannot get the value after space

i am doing my double module project for my degree course and i am also a newbie in JSP. Hope there is someone can help me to solve this problem. Now, i set the value of a radio button to "don't smoke", "smoke lightly", and "smoke heavily". Then i use request.getParameter ("smoking behavior") to get the value selected by the user, but the result is only "don't" or "smoke", which the character after spacing will be not be retrieved. I dun know how to solve it, so can any expert here help me to solve this problem? Thanks for helping.

You can't use spaces in passed parameters; either give your options numerical values that you can translate on the receiving end, or do an URLEncoder.encode() on the values before submitting them. If you encode them, you'll do an URLDecoder.decode() on them on the receiving end.
URLEncoder.encode("don't smoke") = "don%27+smoke"
URLDecoder.decode("don%27+smoke") = "don't smoke"

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  • 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);
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                   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"));
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              f_cashPayment = createButtonAction("Payment", null);
              f_cashPayment.setActionCommand("Cash");
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              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;
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              creditcard.add (f_creditCardVV, gbc1);
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              gbc1.gridy = 0;
              gbc1.gridheight = 2;
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              gbc1.weightx = 0.1;
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         public void dispose()
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         public void actionPerformed (ActionEvent e)
              String action = e.getActionCommand();
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              if (e.getSource() == f_cashGiven) {
                   f_cashGiven.setValue(f_cashGiven.getValue());
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              //     Register
              //     Summary
              //     Print
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                   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
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         public final static int SIZE = 12;
          *  IDE Bean Constructor
         public VNumber()
              this("Number", false, false, true, DisplayType.Number, "Number");
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          *     no popup, if WindowNo == 0 (for IDs)
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          *  @param mandatory mandatory
          *  @param isReadOnly read only
          *  @param isUpdateable updateable
          *  @param displayType display type
          *  @param title title
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              m_title = title;
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    //          int height = m_text.getPreferredSize().height;
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              m_text.setBorder(null);
              m_text.setHorizontalAlignment(JTextField.TRAILING);
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              m_text.addFocusListener(this);
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              m_button.setIcon(Env.getImageIcon("Calculator10.gif"));
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              this.setPreferredSize(this.getPreferredSize());          //     causes r/o to be the same length
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              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);
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              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)
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              m_initialText = m_oldText;
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          *  Return Display Value
          *  @return value
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          *      Get Title
          *     @return title
         public String getTitle()
              return m_title;
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