Med Shabe

Thank you both.

I need to navigate through the components using the tab key and also want to perform some kind of computations once the user has pressed the tab key. I can do the calculation but he tab stays in the current field.

I�m not sure how to set the focus to the next available component.

Any help is appreciated.

import java.awt.event.*; import javax.swing.*; class TabNavTest extends JPanel implements KeyListener { JTextField tf1 = new JTextField(8); JTextField tf2 = new JTextField(8); JTextField tf3 = new JTextField(8); JTextField tf4 = new JTextField(8); JPanel jp; public TabNavTest() { setSize(300, 75); jp = new JPanel(); tf1.addKeyListener(this); tf2.addKeyListener(this); // tf2.setFocusTraversalKeys( // KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, // Collections.EMPTY_SET); // tf2.processComponentKeyEvent(this); tf2.setFocusTraversalKeysEnabled(false); jp.add(tf1); jp.add(tf2); jp.add(tf3); jp.add(tf4); } public JPanel getJP() { return jp; } public void keyPressed(KeyEvent ke) { if ( ke.getKeyCode() == KeyEvent.VK_TAB ) { String s1 = tf1.getText(); String s2 = tf2.getText(); int i1 = Integer.valueOf(s1).intValue(); int i2 = Integer.valueOf(s2).intValue(); int res = i1 * i2; tf3.setText(Integer.toString(res)); // JOptionPane.showMessageDialog(null, res); } } public void keyTyped(KeyEvent ke) { } public void keyReleased(KeyEvent ke) { } public static void main(String args[]) { JFrame f = new JFrame("TabNavTest"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setContentPane(new TabNavTest().getJP()); f.setSize(600, 450); f.setVisible(true); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } }

Thanks Michael.

I have a JMenu class (GoofyMenuBar.java) and a JTabbedPane class (LoginTabbedPane.java) that I�m putting into a splitPane (SplitPane.java).

Clicking on the Go button opens a new tab. I need to invoke the same action from the menu but somehow I�m not making the connection between the components.

Regardless of the ugliness, how can I invoke a method on JTabbedPane from the JMenu, and later from the JToolBar. Apparently, simply instantiating the class does not do the trick.

Appreciate the input.


LoginTabbedPane
import java.awt.*; import java.awt.event.*; import javax.swing.*; import com.programix.gui.*; import com.programix.gui.layout.*; class LoginTabbedPane extends JPanel { private JTabbedPane tabbedPane; private JPanel panel1; private JPanel panel2; private JPanel topPanel; public LoginTabbedPane() { setSize( 300, 200 ); topPanel = new JPanel(); topPanel.setLayout( new BorderLayout() ); // Create the tab pages createLoginPage(); createInfoPage(); // Create a tabbed pane tabbedPane = new JTabbedPane(); tabbedPane.addTab( "Login page", panel1 ); topPanel.add( tabbedPane, BorderLayout.CENTER ); add( topPanel ); } public void createLoginPage() { panel1 = new JPanel(); panel1.setLayout( new FormLayout(AnchorPoint.NORTHWEST)); JLabel label1 = new JLabel( "Username:" ); panel1.add( label1 ); JTextField field = new JTextField(15); panel1.add( field ); JLabel label2 = new JLabel( "Password:" ); panel1.add( label2 ); JPasswordField fieldPass = new JPasswordField(15); panel1.add( fieldPass ); JButton jGo = new JButton("Go"); panel1.add(jGo); jGo.setMnemonic('G'); jGo.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { createInfoPage(); tabbedPane.addTab("Info Page", panel2); } }); } public void createInfoPage() { panel2 = new JPanel(); panel2.setLayout( new FormLayout() ); panel2.add( new JLabel( "Field 1:" ) ); panel2.add( new TextArea() ); panel2.add( new JLabel( "Field 2:" ) ); panel2.add( new TextArea() ); panel2.add( new JLabel( "Field 3:" ) ); panel2.add( new TextArea() ); } // Main method to get things started public static void main( String args[] ) { LoginTabbedPane mainFrame = new LoginTabbedPane(); mainFrame.setSize(800, 700); mainFrame.setVisible( true ); } public JPanel getTopPanel() { return topPanel; } }

GoofyMenuBar.java
import java.awt.event.*; import javax.swing.*; public class GoofyMenuBar { private LoginTabbedPane tabbedPane; public JMenuBar createMenuBar() { tabbedPane = new LoginTabbedPane(); JMenuBar menuBar = new JMenuBar(); menuBar.add(createMenu("Item 1")); menuBar.add(createMenu("Item 2")); return menuBar; } public JMenu createMenu(String title) { JMenu m = new JMenu(title); JMenuItem item1 = new JMenuItem("Item 1"); m.add(item1); m.add(new JMenuItem(title)); item1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tabbedPane.createInfoPage(); //System.exit(0); } }); return m; } }

SplitPane
import java.awt.*; import java.awt.event.*; import javax.swing.*; class SplitPane extends JPanel { private JSplitPane splitPaneH; private JPanel topPanel; private LoginTabbedPane tabbedPane; private GoofyMenuBar menuBar; public SplitPane() { tabbedPane = new LoginTabbedPane(); menuBar = new GoofyMenuBar(); topPanel = new JPanel(); topPanel.setLayout( new BorderLayout() ); add( topPanel ); splitPaneH = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, menuBar.createMenuBar(), tabbedPane.getTopPanel()); splitPaneH.setOneTouchExpandable(true); topPanel.add(splitPaneH); } public static void main( String args[] ) { JFrame.setDefaultLookAndFeelDecorated(true); JDialog.setDefaultLookAndFeelDecorated(true); JFrame f = new JFrame("SplitPane"); f.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); f.setContentPane(new SplitPane()); f.setSize(600, 450); f.setVisible(true); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } }

Just when I thought I understood the differences between the Request and the Session objects, I feel a little confused. The reason I'm staying away from attaching objects to session is that I don't want objects to be hanging around if not needed, before users log out.
So how's ServletContext different from all this then?
This article show how to share objects using ServletContext.
[ September 26, 2003: Message edited by: Med Shabe ]

I am accessing a variable abc via the request object and manipulate the bean for my operation. Now, in an attempt to create a printer-friendly page, I thought I could simply open a link from the first jsp and the request object will carry the vatiable abc with it. Guess NOT.
I am getting a NullPointerException. How else can I achieve this?

Thanks much.

Actually, that's not quiet true. I don't know about support (and don't care much) I just want to run the product on RH9 and you can too.
Just set the value of LD_ASSUME_KERNEL variable to 2.2.5 during installation and run time and you're all set.
Stick this in your .bashrc to be safe:
export LD_ASSUME_KERNEL=2.2.5
Oh BTW, thanks to developersWork for this hint.
~Cheers.
[ August 28, 2003: Message edited by: Med Shabe ]

Wholy moly, I have to send the package back now.
Thnkas for the heads up cb poo.

I have $JAVA_HOME setup and in fact I can run eclipse but not WSAD 5.
I'm getting the following when I try to bring up WSAD on RH9:
JVM terminated. Exit code=11
/opt/IBM/WebSphereStudio/./eclipse/jre/bin/java
.
.
-cp /opt/IBM/WebSphereStudio/./eclipse/startup.jar org.eclipse.core.launcher.Main
.
.

Any sugestions?
Thanks much.

Thanks Ajith for the reply,
I agree with the first part of your response about reusability topic, however I got hung up on the second part:

... you may want to just wrap it in another SessionBean so that you can make use of container managed transactions and other goodies...

How can I take advantage of container managed transaction if I'm not hitting against the db directly?
Appreciate your support.

I�m dealing with a non-jdbc compliant database on mainframe and cannot utilize Entity beans in my application (I use a middleware for performing transactions between web and the mainframe). Having said that, is there a value in using session beans for handling business logic, or should I just stick to JSP, Servlet model?

Maybe the problem is happening cause

the class is not found and so on!

I believe this tutorial has the answer to your scenario, both for html and wml.
The topic you want is Create multi-purpose Web content with XSLT.
Good luck.

Is there anyway to use document() function of XSL with DOM? Basically I need to merge multiple DOM trees. Snippet would be appreciated.
Thanks much.

Thanks for the pointer.
I checked the document() function and all the samples deal with merging physical files. Any way to merge docs in memory, without saving to file?
Thanks much.