Javax.swing.JOptionPane

im a new programmer and i just downloaded ready to program with java and i need to import javax.swing.JOptionPane but it says it dosnt exists where can i go to get it ?
ty for your help in advance.

im using READY TO PROGRAM with java i unno what jdk that is sorry but umm here is the error meassage when i try to compile it.
javax/swing/JOptionPane is either a misplaced package name or a non-existent entity. When i use this exact code at my schools computers it seems to work fine. so i unno ty for your help all

Similar Messages

Cannot find class javax.swing.JOptionPane

Hello,
I imported the class
import javax.swing.JOptionPane;and written as a first line of my code in the form of a .java file.
but error occurs as : cannot find the class javax.swing.JOptionPane. What should I do.
Thank you.

Are you doing something likeimport javax.swing.JOptionPane;
class Test {
    public static void main(String args[]) {
        JOptionPane.showMessageDialog(null, "Testing",
                "Testing", JOptionPane.INFORMATION_MESSAGE);
}Mark

Import javax.swing.JOptionPane

hello
i just installed j2sdk1.3.1 into my redhat linux7.3, during installation, everything's fine...
but when i start to compile a program with some import classes...i face the problem :
cannot find type "javax/swing/JOptionPane
this is my program :
import javax.swing.JOptionPane;
public class Welcome{
public static void main(String args[])
JOptionPane.showMessageDialog(null,"Hello");
System.exit(0);
can anybody help me with this problem......?...thanks

type
java -versionto see which version of the JVM you are running
you could also try
which javato see the actuall executable that you are running.

Cannot Import javax.swing.JOptionPane Please HELP!!!

import javax.swing.JOptionPane;
this line of code returns the error:
C:\Java Files\BankAccount\BankAccount_Test.java:1: Class javax.swing.JOptionPane not found in import.
import javax.swing.JOptionPane;
^
1 error
Process completed.
Please help, I don't know what the problem could be....

Swing was not part of any JDK's earlier than 1.2. Swing (or anything with a J in front of it, ie. JFrame, JOptionPane, etc...) was probably the most dramatic (if not largest) modification/addition to the Java language, that's why versions later than, and including, 1.2 are known as "Java 2".

Javax.swing.Timer not working or event not being captured by actionPerfrmd

Here is the code:
public class nQueensEst extends JApplet implements ActionListener {
public Timer t = new Timer(1, this);
//...the actionPerformed:
if(e.getSource() == jButton1){
            nRainhas=Integer.parseInt(javax.swing.JOptionPane.showInputDialog("Quantas rainhas voc? deseja?"));
            t.start();
            int contadorTentativas=1;
            for(int i=0; i<=100; i++){
                sol=new int[nRainhas];
                while(!rainhas()){
                  jLabel1.setText(contadorTentativas +" tentativas!!!");
                  contadorTentativas++;
                jLabel2.setText("Solu??es: "+Integer.toString(i));
t.stop();
}else if(e.getSource() == t){
     System.out.println("timer");
     rodadas++;
Any clue?
Thanks

Let me explai the context: i had to implement a classic nQueens problem using a Grasp Algorithm and a Backtrack algorithm, then in dorder to compare them, i want to make the garap one to run find 100000 solutions and register the time it is needes, then divide by 100000. so i need the timer running and making a variable increase every millisecond from the beggining until the end of the last solution. But the timer is not generating a event or the event is not being caought by the actionPerformed.

Variable textArea not found in class javax.swing.JFrame...

Making progress on this issue -- but still stuck. Again trying to get the text from a JTextArea on exit:
        frame.addWindowListener
       (new WindowAdapter() {
         public void windowClosing(WindowEvent e)
            System.out.println("Why me???" + frame.textArea.getText());
        });User MARSIAN helped me understand the scope fo the variables and now that has been fixed. Unfortunately I cannot access my variable textArea in the above code. If get this error:
Error: variable textArea not found in class javax.swing.JFrame
What am I doing wrong?
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import FragImpl.*;
public class Framework extends WindowAdapter {
    public int numWindows = 0;
    private Point lastLocation = null;
    private int maxX = 500;
    private int maxY = 500;
    JFrame frame;
    public Framework() {
        newFrag();
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        maxX = screenSize.width - 50;
        maxY = screenSize.height - 50;
        makeNewWindow();
    public void makeNewWindow() {
        frame = new MyFrame(this); //*
        numWindows++;
        System.out.println("Number of windows: " + numWindows);
        if (lastLocation != null) {
            //Move the window over and down 40 pixels.
            lastLocation.translate(40, 40);
            if ((lastLocation.x > maxX) || (lastLocation.y > maxY)) {
                lastLocation.setLocation(0, 0);
            frame.setLocation(lastLocation);
        } else {
            lastLocation = frame.getLocation();
        System.out.println("Frame location: " + lastLocation);
        frame.setVisible(true);
        frame.addWindowListener
       (new WindowAdapter() {
         public void windowClosing(WindowEvent e)
            System.out.println("Why me???" + frame.textArea.getText());
    //This method must be evoked from the event-dispatching thread.
    public void quit(JFrame frame) {
        if (quitConfirmed(frame)) {
            System.exit(0);
        System.out.println("Quit operation not confirmed; staying alive.");
    private boolean quitConfirmed(JFrame frame) {
        String s1 = "Quit";
        String s2 = "Cancel";
        Object[] options = {s1, s2};
        int n = JOptionPane.showOptionDialog(frame,
                "Windows are still open.\nDo you really want to quit?",
                "Quit Confirmation",
                JOptionPane.YES_NO_OPTION,
                JOptionPane.QUESTION_MESSAGE,
                null,
                options,
                s1);
        if (n == JOptionPane.YES_OPTION) {
            return true;
        } else {
            return false;
     private void newFrag()
          Frag frag = new FragImpl();
    public static void main(String[] args) {
        Framework framework = new Framework();
class MyFrame extends JFrame {
    protected Dimension defaultSize = new Dimension(200, 200);
    protected Framework framework = null;
    private Color color = Color.yellow;
    private Container c;
    JTextArea textArea;
    public MyFrame(Framework controller) {
        super("New Frame");
        framework = controller;
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        setSize(defaultSize);
        //Create a text area.
        textArea = new JTextArea(
                "This is an editable JTextArea " +
                "that has been initialized with the setText method. " +
                "A text area is a \"plain\" text component, " +
                "which means that although it can display text " +
                "in any font, all of the text is in the same font."
        textArea.setFont(new Font("Serif", Font.ITALIC, 16));
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        textArea.setBackground ( Color.yellow );
        JScrollPane areaScrollPane = new JScrollPane(textArea);
        //Create the status area.
        JPanel statusPane = new JPanel(new GridLayout(1, 1));
        ImageIcon icoOpen = null;
        URL url = null;
        try
            icoOpen = new ImageIcon("post_it0a.gif"); //("doc04d.gif");
        catch(Exception ex)
            ex.printStackTrace();
            System.exit(1);
        setIconImage(icoOpen.getImage());
        c = getContentPane();
        c.setBackground ( Color.yellow );
        c.add ( areaScrollPane, BorderLayout.CENTER ) ;
        c.add ( statusPane, BorderLayout.SOUTH );
        c.repaint ();
}

Yeah!!! It works. Turned out to be a combination of DrKlap's and Martisan's suggestions -- had to change var frame's declaration from JFrame to MyFrame:
    MyFrame frame;Next, created the external class -- but again changed JFrame references to MyFrame:
public class ShowOnExit extends WindowAdapter {
//   JFrame aFrame;
   MyFrame aFrame;
   public ShowOnExit(MyFrame f) {
      aFrame = f;
   public void windowClosing(WindowEvent e)
      System.out.println("Why me???" + aFrame.textArea.getText()); // aFrame here not frame !!!
}This worked. So looks like even though the original code added a WindowListener to 'frame', the listener didn't couldn't access frame's methods unless it was explicitly passed in as a parameter. Let me know if that's wrong.
Thanks again, all.

UIManager.look and feel buttons or javax.swing

Hey,
i want to use the ok, cancel etc. button that you get in a JFileChooser or a JOptionPane.
Can they be found in the UIManager or in the javax.swing?
i tried to extract them from the JFileChooser by:
JFileChooser chooser = new JFileChooser("/"); //Linux
JPanel mypanel = new JPanel();
mypanel.add(chooser.getComponentAt(2)); //the button panelthis works, but i don't know how to overwrite the actionlistener to make the buttons listen to my actionlistener.
thanks in advance
Grad_

It returns an int value according to what button was clicked
http://72.5.124.55/docs/books/tutorial/uiswing/components/filechooser.html
http://java.sun.com/developer/JDCTechTips/2004/tt0316.html

[HELP! ] why my program thows a javax.swing.text.ChangedCharSetException?

there's the source:
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.text.html.*;
import javax.swing.border.*;
class HTMLMagician extends JFrame
     protected static final String APP_NAME="HTML Magician V1.0 Produced By V Studio";
     protected JTextPane hm_textPane;
     protected StyleSheet hm_styleSheet;
     protected HTMLEditorKit html_kit;
     protected HTMLDocument html_document;
     protected JMenuBar hm_menuBar;
     protected JToolBar hm_toolBar;
     protected JFileChooser hm_fileChooser;
     protected File current_file;
     protected boolean text_changed=false;
     public HTMLMagician()
          super(APP_NAME);
          setSize(800,600);
          getContentPane().setLayout(new BorderLayout());
          produceMenuBar();
          hm_textPane=new JTextPane();
          html_kit=new HTMLEditorKit();
          hm_textPane.setEditorKit(html_kit);
          JScrollPane textPane_scrollPane=new JScrollPane();
          textPane_scrollPane.getViewport().add(hm_textPane);
          getContentPane().add(textPane_scrollPane,BorderLayout.CENTER);
          hm_fileChooser=new JFileChooser();
          javax.swing.filechooser.FileFilter hm_filter=new javax.swing.filechooser.FileFilter()
               public boolean accept(File pathname)
                    if(pathname.isDirectory())
                         return true;
                    String ext_name=pathname.getName().toLowerCase();
                    if(ext_name.endsWith(".htm"))
                         return true;
                    if(ext_name.endsWith(".html"))
                         return true;
                    if(ext_name.endsWith(".asp"))
                         return true;
                    if(ext_name.endsWith(".jsp"))
                         return true;
                    if(ext_name.endsWith(".css"))
                         return true;
                    if(ext_name.endsWith(".php"))
                         return true;
                    if(ext_name.endsWith(".aspx"))
                         return true;
                    if(ext_name.endsWith(".xml"))
                         return true;
                    if(ext_name.endsWith(".txt"))
                         return true;
                    return false;
               public String getDescription()
                    return "HTML files(*.htm,*.html,*.asp,*.jsp,*.css,*.php,*.aspx,*.xml)";
          hm_fileChooser.setAcceptAllFileFilterUsed(false);
          hm_fileChooser.setFileFilter(hm_filter);
          try
               File dir=(new File(".")).getCanonicalFile();
               hm_fileChooser.setCurrentDirectory(dir);
          }catch(IOException ex)
               showError(ex,"Error openning current directory");
          newDocument();
          WindowListener action_winClose=new WindowAdapter()
               public void windowClosing(WindowEvent evt)
                    if(!promptToSave())
                         return;
                    System.exit(0);
          addWindowListener(action_winClose);
          setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
          setVisible(true);
     protected void produceMenuBar()
          hm_menuBar=new JMenuBar();
          hm_toolBar=new JToolBar();
          JMenu menu_file=new JMenu("File");
          menu_file.setMnemonic('f');
          ImageIcon icon_new=new ImageIcon("imgs/file.gif");
          Action action_new=new AbstractAction("New",icon_new)
               public void actionPerformed(ActionEvent evt)
                    if(!promptToSave())
                         return;
                    newDocument();
          JMenuItem item_new=new JMenuItem(action_new);
          item_new.setMnemonic('n');
          item_new.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));
          menu_file.add(item_new);
          JButton button_new=hm_toolBar.add(action_new);
          ImageIcon icon_open=new ImageIcon("imgs/folder_open.gif");
          Action action_open=new AbstractAction("Open...",icon_open)
               public void actionPerformed(ActionEvent evt)
                    if(!promptToSave())
                         return;
                    openDocument();
          JMenuItem item_open=new JMenuItem(action_open);
          item_open.setMnemonic('o');
          item_open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
          menu_file.add(item_open);
          JButton button_open=hm_toolBar.add(action_open);
          ImageIcon icon_save=new ImageIcon("imgs/floppy.gif");
          Action action_save=new AbstractAction("Save",icon_save)
               public void actionPerformed(ActionEvent evt)
                    saveAs(false);
          JMenuItem item_save=new JMenuItem(action_save);
          item_save.setMnemonic('s');
          item_save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
          menu_file.add(item_save);
          JButton button_save=hm_toolBar.add(action_save);
          Action action_saveAs=new AbstractAction("Save As...")
               public void actionPerformed(ActionEvent evt)
                    saveAs(true);
          JMenuItem item_saveAs=new JMenuItem(action_saveAs);
          item_saveAs.setMnemonic('a');
          item_saveAs.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK));
          menu_file.add(item_saveAs);
          menu_file.addSeparator();
          Action action_close=new AbstractAction("Quit")
               public void actionPerformed(ActionEvent evt)
                    if(!promptToSave())
                         return;
                    System.exit(0);
          JMenuItem item_exit=new JMenuItem(action_close);
          item_exit.setMnemonic('q');
          item_exit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,InputEvent.CTRL_MASK));
          menu_file.add(item_exit);
          hm_menuBar.add(menu_file);
          setJMenuBar(hm_menuBar);
          getContentPane().add(hm_toolBar,BorderLayout.NORTH);
     protected String getDocumentName()
          return current_file==null ? "Untitled" : current_file.getName();
     protected void newDocument()
          html_document=(HTMLDocument)html_kit.createDefaultDocument();
          hm_styleSheet=html_document.getStyleSheet();
          hm_textPane.setDocument(html_document);
          current_file=null;
          setTitle(getDocumentName()+" - "+APP_NAME);
          Runnable runner=new Runnable()
               public void run()
                    text_changed=false;
                    html_document.addDocumentListener(new action_textChanged());
          SwingUtilities.invokeLater(runner);
     protected void openDocument()
          if(hm_fileChooser.showOpenDialog(HTMLMagician.this)!=JFileChooser.APPROVE_OPTION)
               return;
          File f=hm_fileChooser.getSelectedFile();
          if(f==null || !f.isFile())
               return;
          current_file=f;
          setTitle(getDocumentName()+" - "+APP_NAME);
          HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
          try
               InputStream in=new FileInputStream(current_file);
               html_document=(HTMLDocument)html_kit.createDefaultDocument();
               html_kit.read(in,html_document,0);
               hm_styleSheet=html_document.getStyleSheet();
               hm_textPane.setDocument(html_document);
               in.close();
          }catch(Exception ex)
               showError(ex,"Error openning file "+current_file);
          HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
          Runnable runner=new Runnable()
               public void run()
                    text_changed=false;
                    html_document.addDocumentListener(new action_textChanged());
          SwingUtilities.invokeLater(runner);
     protected boolean saveAs(boolean as)
          if(!as && !text_changed)
               return true;
          if(as || current_file==null)
               if(hm_fileChooser.showSaveDialog(HTMLMagician.this)!=JFileChooser.APPROVE_OPTION)
                    return false;
               File f=hm_fileChooser.getSelectedFile();
               if(f==null || !f.isFile())
                    return false;
               current_file=f;
               setTitle(getDocumentName()+" - "+APP_NAME);
          HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
          try
               OutputStream out=new FileOutputStream(current_file);
               html_kit.write(out,html_document,0,html_document.getLength());
               out.close();
          }catch(Exception ex)
               showError(ex,"Error saving file "+current_file);
          HTMLMagician.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
          return true;
     protected boolean promptToSave()
          if(!text_changed)
               return true;
          int result=JOptionPane.showConfirmDialog(this,"Save change to "+getDocumentName(),APP_NAME,JOptionPane.YES_NO_CANCEL_OPTION,JOptionPane.INFORMATION_MESSAGE);
          switch(result)
               case JOptionPane.YES_OPTION:
                    if(!saveAs(false))
                         return false;
                    return true;
               case JOptionPane.NO_OPTION:
                    return true;
               case JOptionPane.CANCEL_OPTION:
                    return false;
          return true;
     protected void showError(Exception ex,String message)
          ex.printStackTrace();
          JOptionPane.showMessageDialog(this,message,APP_NAME,JOptionPane.WARNING_MESSAGE);
     public static void main(String[] args)
          new HTMLMagician();
     class action_textChanged implements DocumentListener
          public void changedUpdate(DocumentEvent evt)
               text_changed=true;
          public void insertUpdate(DocumentEvent evt)
               text_changed=true;
          public void removeUpdate(DocumentEvent evt)
               text_changed=true;
when i open a .html file,the command output :
javax.swing.text.ChangedCharSetException
     at javax.swing.text.html.parser.DocumentParser.handleEmptyTag(Unknown Source)
     at javax.swing.text.html.parser.Parser.startTag(Unknown Source)
     at javax.swing.text.html.parser.Parser.parseTag(Unknown Source)
     at javax.swing.text.html.parser.Parser.parseContent(Unknown Source)
     at javax.swing.text.html.parser.Parser.parse(Unknown Source)
     at javax.swing.text.html.parser.DocumentParser.parse(Unknown Source)
     at javax.swing.text.html.parser.ParserDelegator.parse(Unknown Source)
     at javax.swing.text.html.HTMLEditorKit.read(Unknown Source)
     at javax.swing.text.DefaultEditorKit.read(Unknown Source)
     at HTMLMagician.openDocument(HTMLMagician.java:222)
     at HTMLMagician$4.actionPerformed(HTMLMagician.java:128)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(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)
why? what's wrong? thanks

The DocumentParser seems to throw a ChangedCharSetException if it finds a "http-equiv" meta tag for "content-type" or "charset" and if the parser's "ignoreCharSet" property is set to false on creation.

Newbie compiler help using javax.swing class

current java ver java version "1.5.0_02"
error msg
[error]
C:\Documents and Settings\Neil\Desktop\Java>javac neiltest2.java
neiltest2.java:12: package javax does not exist
import javax.swing;
^
neiltest2.java:28: cannot resolve symbol
symbol : variable JOptionPane
location: class neiltest2
JOptionPane.showMessageDialog(null, "The total is " + intSum);
^
2 errors
[error]
* neiltest2.java
* Created on 02 June 2005, 19:02
* @author Neil
* @version
import javax.swing;
public class neiltest2 {
    /** Creates new neiltest2 */
    public neiltest2() {
    * @param args the command line arguments
    public static void main (String args[]) {
        int intSum;
        intSum = 14+35;
        JOptionPane.showMessageDialog(null, "The total is " + intSum);
        System.exit(0);
}TIA
Neil

Use either
import javax.swing.JOptionPanel;
or
import javax.swing.*;
� {�

Javax.swing

hi.. i want to ask about how can i display my text in a scrollable window by importing javax.swing.*?

yes like notepad.. thanks for the code.
i already have this code in a file called display.java
public static void display( String str )
JTextArea textArea = new JTextArea( str, 15, 20 );
textArea.setFont( new Font( "Serif", Font.PLAIN, 14 ));
textArea.setForeground( Color.red );
JScrollPane scrollPane= new JScrollPane( textArea );
JOptionPane.showMessageDialog( null, scrollPane );
and i have another file that perform a search string(search.java). i want the search result to be displayed in a scrollable windows. how can i do that? thanks..

Javax.swing.DefaultPopupFactory serialization error

Hi,
I get a java.io.NotSerializableException for the class javax.swing.DefaultPopupFactory this seems to be a private class, because I cannot find anything about it.
The only swing components I am using are some JFrames with buttons, textfields, etc. and a few dialog boxes via JOptionPane.showMessageDialog(...);
How do I get rid of this error?
TIA,
ablivian23

This is the single most amazing thread I have ever+* seen.

Multiple Fonts in a javax.swing.JTextPane

I am trying to use multiple fonts in a JTextPane, but can only find ways of changing the font family used. Can anyone give me any pointers on how to do this, or a document somewhere that explains, either way with out going into the javax.swing.text.html, javax.swing.text.html.parser or java.awt.font packages.
Any information that can be provided would be appreciated.
Thanks,
Nathan

Just use SimpleAttributeSet like :
SimpleAttributeSet defaultSet = new SimpleAttributeSet();
        StyleConstants.setForeground( defaultSet, Color.BLACK );
        StyleConstants.setFontFamily( defaultSet, "Verdana" );
        StyleConstants.setFontSize( defaultSet, 14 );
        SimpleAttributeSet navigationSet = new SimpleAttributeSet();
        StyleConstants.setForeground( navigationSet, new Color(00, 99, 00) );
        StyleConstants.setBold( navigationSet, true );
        StyleConstants.setFontFamily( navigationSet, "Verdana" );
        StyleConstants.setFontSize( navigationSet, 11 );
// just defiine endPoints what ever you want
((DefaultStyledDocument)textPane.getDocument()).setCharacterAttributes(0, endPoint1, defaultSet , true)
((DefaultStyledDocument)textPane.getDocument()).setCharacterAttributes(0, endPoint2, navigation , true)

Import javax.swing.*;

I start my programm with:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import rechenwerk.Rechenwerk; import rechenwerk.RechenwerkFassade;
import zahl.Zahl; import zahl.ZahlFassade;
import oberflaeche.Oberflaeche;
At "import javax.swing.*" i get the failure message from the compiler:
Oktalrechner.java:8: Package javax.swing not found in import.
import javax.swing.*;
What is wrong? I don't know-please help me.
I'm using JDK1.2BETA4

Tell me when you execute java -version, what you are getting?
Looks like you are suing old JDK.
Download the latest public release JDK1.4 from http://java.sun.com
/Sreenivasa Kumar Majji.
Did somebody help you? I have a similar problem with
javax.resource... :(
I start my programm with:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import rechenwerk.Rechenwerk; import
rechenwerk.RechenwerkFassade;
import zahl.Zahl; import zahl.ZahlFassade;
import oberflaeche.Oberflaeche;
At "import javax.swing.*" i get the failure message
from the compiler:
Oktalrechner.java:8: Package javax.swing not foundin
import.
import javax.swing.*;
What is wrong? I don't know-please help me.
I'm using JDK1.2BETA4

Javax.swing.tree.DefaultMutableTreeNode

I have a tree with some nodes in it.
I am using setAllowsChildren(boolean x) method of javax.swing.tree.DefaultMutableTreeNode on the nodes.
But the problem i m facing is
1....if setAllowsChildren() method returns true ,i m getting tree icon displayed on side of node(irrespective of whether the node has children or not )
I m facing with a challenge of allowing node to have children by using
setAllowsChildren(true) and at the same time display tree icon only when children are present.
Some of my friends say it is a java bug.
If not how do i go about solving this one.
Thanks in advance

Ok i will put it in another way.
Is there any other way by which the tree icon can be made to display
without the usage of[b] setAllowsChildren() method

Javax.swing.filechooser.FileFilter

Does anybody know why javax.swing.filechooser.FileFilter is an abstract class
instead of an interface extending java.io.FileFilter ?
Gordan

Yeh - and while we are on the subject, why doesnt it implement java.io.FileFilter so you can use the same filter for the filechooser as you do for listing files? </bangheadagainstwall>

Javax.swing.JOptionPane

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