Exception IndexOutOfBoundsException using Vector. Christmas homework!

Hi everyone, I'm not a java expert (almost a newbie, I would say) and this is the first time I post anything in a Forum. I have the following piece of code:
public class Test extends javax.swing.JFrame {
private java.util.Vector list;
public Test() {
     super("test");
     list = new java.util.Vector();
     javax.swing.JButton add = new javax.swing.JButton("Add");
     add.addActionListener(new java.awt.event.ActionListener() {
          public void actionPerformed(java.awt.event.ActionEvent e) {
          String value = "new element";
          System.out.println("size: "+list.size());
          list.add(value);
          int i = list.size();
          System.out.println("size + 1: "+i);
          /**/System.out.println("elem i: "+ (String)list.get(i));
     getContentPane().add(add);
     pack();
     setVisible(true);
public static void main(String[] args) {
     new Test();
and when I run it I have the following printout:
size: 0
size + 1: 1
java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 1
at....
(omissis)
Does anyone have any idea of why? how can I solve the problem? Isn't Vector supposed to be "dynamic"?
Elsewhere I use Vectors with no problems but I am not accessing it right after having added any element, rather I return it as the result of some elaboration and then access it.
I know it's Christmas time and so I wish you all Merry Christmas and Happy new Year. I hope someone has time to answer me over this holydays.
Thanks anyway,
Rosario

Does anyone have any idea of why? how can I solve the
problem? Isn't Vector supposed to be "dynamic"?You try to access an element after the last element. When you set i = list.size(), i will be the index of the last element plus one. This is because indices count from 0.
It is the list.get(i) that causes the problem.
Søren

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import java.io.*;
* Title: 
* Description: 
* Copyright: Copyright (c) 2008
* Company: 
* @author unascribed
* @version 1.0
public class A implements Serializable {
int no;
String name;
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public void set_no(int n)
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import java.awt.*;
import java.io.*;
import java.util.*;
import com.borland.jbcl.layout.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;
import javax.swing.border.*;
* Title: 
* Description: 
* Copyright: Copyright (c) 2008
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JTextField txtname = new JTextField();
JTextField txtage = new JTextField();
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Why not let Java do the work - use a java.util.TreeSet instead of a Vector.
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Dear Experts,
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Dear Nithi Anandham,
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Dear Meghanath,
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Exception [TOPLINK-4002] (Oracle TopLink - 10g Release 3 (10.1.3.0.0) (Build 060118)): oracle.toplink.exceptions.DatabaseException
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 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
 at java.lang.Thread.run(Thread.java:595)

Hi,
I am having a similar problem that results in this stack trace. The funny thing is that it occurs after a session.logout/login and re-read of the object I'm trying to update. The other thing is that if I remove objects from the transaction it just happens somewhere else - on a different object/descriptor. I am attempting to upgrade from 9.03 runtime to the 10.0.3.1 builder/runtime. I am connecting to a Sybase 12.5 db.
Any ideas on this one?
Thanks,
Bret
This is the sql that is found in the DatasourceCallQueryMechanism. We are not using any custom SQL.
SQLCall(INSERT INTO Invoice (id, description, billingAddress, customerNote, invoiceNumber, startDate, stopDate, sentDate, commitDate, customerId, dueDate) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?))
java.lang.NullPointerException
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 at oracle.toplink.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:156)
 at oracle.toplink.internal.queryframework.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:170)
 at oracle.toplink.internal.queryframework.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:426)
 at oracle.toplink.queryframework.InsertObjectQuery.executeCommit(InsertObjectQuery.java:65)
 at oracle.toplink.queryframework.InsertObjectQuery.executeCommitWithChangeSet(InsertObjectQuery.java:75)
 at oracle.toplink.internal.queryframework.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:251)
 at oracle.toplink.queryframework.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:47)
 at oracle.toplink.queryframework.DatabaseQuery.execute(DatabaseQuery.java:620)
 at oracle.toplink.queryframework.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:542)
 at oracle.toplink.queryframework.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:100)
 at oracle.toplink.queryframework.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:72)
 at oracle.toplink.publicinterface.UnitOfWork.internalExecuteQuery(UnitOfWork.java:2578)
 at oracle.toplink.publicinterface.Session.executeQuery(Session.java:988)
 at oracle.toplink.publicinterface.Session.executeQuery(Session.java:945)
 at oracle.toplink.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:243)
 at oracle.toplink.internal.sessions.CommitManager.commitAllObjectsForClassWithChangeSet(CommitManager.java:218)
 at oracle.toplink.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:174)
 at oracle.toplink.publicinterface.Session.writeAllObjectsWithChangeSet(Session.java:3177)
 at oracle.toplink.publicinterface.UnitOfWork.commitToDatabase(UnitOfWork.java:1282)
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 at oracle.toplink.publicinterface.UnitOfWork.commitRootUnitOfWork(UnitOfWork.java:1137)
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/////////////////////////////////

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Dear Guru's,
I am not able to solve the above issue for last couple of days.
I am newbie to the webservice
My Issue...
I am using Jdeveloper 11.1.2.4.0 Release 2
1. Using Jdev I built one small Web Service with two methods.
        While testing the Webservice...
               I passed User Id as Parameter and it successfully return the values (user id, user name and description) from fnd_user table
2. I created another application to consume the web service i created.
               1. I added the webservice SOAP and added the method.
               2. Created a jsf page and drag and drop the parameter and return values to the jsf page.
3. While executing the created jsf page I received the error message as below
"oracle.jbo.NoDefException: JBO-29114 ADFContext is not setup to process messages for this exception. Use the exception stack trace and error code to investigate the root cause of this exception. Root cause error code is JBO-25058. Error message parameters are {0=Attribute, 1=UserName, 2=UserName}"
Even I know that this issue is repeated one in our forum, I was not able to solve this issue.
Can anybody help to solve this issue.
Thanks and Regards,
Durai S E

Dear Guru's,
I am not able to solve the above issue for last couple of days.
I am newbie to the webservice
My Issue...
I am using Jdeveloper 11.1.2.4.0 Release 2
1. Using Jdev I built one small Web Service with two methods.
        While testing the Webservice...
               I passed User Id as Parameter and it successfully return the values (user id, user name and description) from fnd_user table
2. I created another application to consume the web service i created.
               1. I added the webservice SOAP and added the method.
               2. Created a jsf page and drag and drop the parameter and return values to the jsf page.
3. While executing the created jsf page I received the error message as below
"oracle.jbo.NoDefException: JBO-29114 ADFContext is not setup to process messages for this exception. Use the exception stack trace and error code to investigate the root cause of this exception. Root cause error code is JBO-25058. Error message parameters are {0=Attribute, 1=UserName, 2=UserName}"
Even I know that this issue is repeated one in our forum, I was not able to solve this issue.
Can anybody help to solve this issue.
Thanks and Regards,
Durai S E

Invalid_path exception while using UTL_FILE.FOPEN

Hi
I am getting invalid_path exception while using the UTL_FILE.fopen subprogram. I tried finding out the reason but could not solve it. Please help.
Below is my piece of code.
create directory utldr as 'e:\utldir';
declare
f utl_file.file_type;
s varchar2(200);
begin
dbms_output.put_line('1');
f := utl_file.fopen('UTLDR','utlfil.txt','r');
dbms_output.put_line('2');
utl_file.get_line(f,s);
dbms_output.put_line('3');
utl_file.fclose(f);
dbms_output.put_line('4');
dbms_output.put_line(s);
exception
when utl_file.invalid_path then
dbms_output.put_line('invalid_path');
end;
the result is:
1
invalid_path

I am executing it from sys. The same user who created the directory.
The output is as below:
SELECT * FROM dba_directories
OWNER     DIRECTORY_NAME     DIRECTORY_PATH
SYS     MEDIA_DIR      d:\avale\rel4\demo\schema\product_media\
SYS     LOG_FILE_DIR     d:\avale\rel4\assistants\dbca\logs\
SYS     DATA_FILE_DIR     d:\avale\rel4\demo\schema\sales_history\
SYS     EMP_DIR     E:\Oracle Directory
SYS     REMOTED     \\10.1.1.12\oracle directory
SYS     UTLDR     e:\utldir
SELECT * FROM dba_tab_privs WHERE table_name='UTLDR'
GRANTEE     OWNER     TABLE_NAME     GRANTOR     PRIVILEGE     GRANTABLE     HIERARCHY
PUBLIC     SYS     UTLDR     SYS     READ     NO     NO

How to use Vector or other ArrayList etc to store my JTree??

How to use Vector or other ArrayList etc to store my JTree??
Dear friends,
I have following I posted before, but not get satisfactory answer, so I modify and repost again here.
I have following code can add classes and students in the JTree,
in class Computer Science, it has student Bill Brien,
in Math, no,
Then I I add Student Nancy, Laura, Peter into Computer Science Class,
add AAAA, BBB, CCC into Math class,
I create a new class called Chemistry, then I add DDD int Chemistry;
so this JTree is dynamically changed,
[1]. How can I dynamically save my current JTree with all above tree structure and its nodes in a Vector or ArrayList(not sure which one is best)??
see code below:
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
public class ModelJTreeTest extends JFrame {
private JTree tree;
private DefaultTreeModel model;
private DefaultMutableTreeNode rootNode;
public ModelJTreeTest() {
    DefaultMutableTreeNode philosophersNode = getPhilosopherTree();
    model = new DefaultTreeModel(philosophersNode);
    tree = new JTree(model);
    JButton addButton = new JButton("Add Class/Students");
    addButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        addPhilosopher();
    JButton removeButton = new JButton("Remove Selected Class/Students");
    removeButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        removeSelectedPhilosopher();
    JPanel inputPanel = new JPanel();
    inputPanel.add(addButton);
    inputPanel.add(removeButton);
    Container container = getContentPane();
    container.add(new JScrollPane(tree), BorderLayout.CENTER);
    container.add(inputPanel, BorderLayout.NORTH);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(400, 300);
    setVisible(true);
private void addPhilosopher() {
    DefaultMutableTreeNode parent = getSelectedNode();
    if (parent == null) {
      JOptionPane.showMessageDialog(ModelJTreeTest.this, "Select Class", "Error",
          JOptionPane.ERROR_MESSAGE);
      return;
    String name = JOptionPane.showInputDialog(ModelJTreeTest.this, "Add Class/Students:");
    model.insertNodeInto(new DefaultMutableTreeNode(name), parent, parent.getChildCount());
private void removeSelectedPhilosopher() {
    DefaultMutableTreeNode selectedNode = getSelectedNode();
    if (selectedNode != null)
      model.removeNodeFromParent(selectedNode);
private DefaultMutableTreeNode getSelectedNode() {
    return (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
private DefaultMutableTreeNode getPhilosopherTree() {
    DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("Students");
    DefaultMutableTreeNode ancient = new DefaultMutableTreeNode("Computer Science");
    rootNode.add(ancient);
    ancient.add(new DefaultMutableTreeNode("Bill Brian"));
    DefaultMutableTreeNode math = new DefaultMutableTreeNode("Maths");
    rootNode.add(math);
    DefaultMutableTreeNode physics = new DefaultMutableTreeNode("Physics");
    rootNode.add(physics);
    return rootNode;
public static void main(String args[]) {
    new ModelJTreeTest();
}the actual Tree dynamically created somehow looks like following:
                         |            1.Peter
                         |---CS---    2. Nancy
                         |            3. Laura
                         |            4.Brian
                         |
Root(University): -------|---Math- 1.AAA
                         |            2.BBB
                         |            3.CCC
                         |
                         |
                         |---Chemistry- 1. DDDThanks a lot
Good weekends

you can't directly store a tree in a list.Ummm... Just to be contrary... Yes you CAN store a tree in a table.... In fact that's how the windows file system works.
Having said that... you would be well advised to investigate tree data-structures before resorting to flattening a tree into a list.
So... Do you have a specific requirement to produce a List? Your umming-and-erring about Vector vs ArrayList makes it sound like you're still at the stage of choosing a datastructure.
Cheers. Keith.

How to use vector in JTable? Please help......

Hi there
I can use JTable using object array to manupulate data but it has a limitation of defining number of rows of the array. Alternatively i want to use vector. Anyone help me how to convert to using vector.
Regards.
mortoza, Dhaka

hi,
you could either use javax.swing.table.DefaultTableModel because this class uses a java.util.Vector for data storage or you could implements your own TableModel by extending javax.swing.table.AbstractTableModel.
best regards, Michael

HT2188 I can hear caller but they can not hear me except when using speaker phone

I can hear caller but they can not hear me except when using speaker phone

First of all, make sure that your iPhone as the most recent iOS available. Check in "Settings>General>Software Update".
One other problem could be your microphone. Does it work for anything else other than a call?
Good-Luck!
kpower28
Please mark this as "solved my problem" or "helped me"!

Problems using Vector in Flex Builder 3

I've been using Vector with no problems in Flash Builder Beta, but when I try the same thing in Flex Builder 3, the compiler throws a fit when I use it.
public function PuzzleEvent(type:String, pieces:Vector.<Sprite>, bubbles:Boolean=false, cancelable:Boolean=false)
//handle PuzzleEvent
The other strange thing is, Flex automatically adds this line when I use vector:
import __AS3__.vec.Vector;
An import shouldn't be necessary should it? Vector is in the top level package right? With or without that import statement, I get compile errors. Has anyone else had such problems with vector in Flex Builder?
Dan

The only way I was ever able to solve this problem was to use Flex builder Beta and now Flash Builder 4. I did target flash player 10.0.0, but I still never could get it to work. At least it works in Flash Builder 4.

Using Vectors in Entity Beans

Hello,
Can I use vectors in entity and store them in Tables directly as binary objects.I have tried making that bean but facing problem in retriving data from table using EJB-QL.Here are code snippets:
-------public abstract class CartEntityBean implements EntityBean {
     private EntityContext ctx;
     public abstract String getCartId();
     public abstract Vector getItems();
     public abstract void setCartId(String CartId);
     public abstract void setItems(Vector items);
public String ejbCreate(String cartId,Vector items) throws CreateException {
          setCartId(cartId);
          return cartId;
rest other methods omitted
public interface CartHomeInterface extends EJBHome{
public CartRemoteInterface create (String cartId,Vector items )throws CreateException,RemoteException ;
public CartRemoteInterface findByPrimaryKey(String pk) throws FinderException, RemoteException;
public Collection findmyItems() throws FinderException, RemoteException;
I am using Cloudscape as Database.
Please help weather I can use Complex objects in Entity Beans or Not

this is no good idea to store the cart-items as a java-vector. you should create a entity bean cart and a entity bean cartItem. then create a cmr between the two entity beans.

Exception in using rssutils.tld in jsp

hi,I met an exception in using rssutils.tld
My code is:
<rss:feed url="http://rss.xinhuanet.com/rss/food.xml" feedId="food"/>
<rss:forEachItem feedId="food" startIndex="0" endIndex="5">
<rss:itemTitle feedId="food"/>
</rss:forEachItem>
and it worded well,but when I changed it to
<c:set var="url" value="http://rss.xinhuanet.com/rss/food.xml"/>
<rss:feed url="${url}" feedId="food"/>
<rss:forEachItem feedId="food" startIndex="0" endIndex="5">
<rss:itemTitle feedId="food"/>
</rss:forEachItem>
it had a exception:java.lang.NullPointerException .
I have a questtion,why couldn't I use the parameter url to replace the string "http://rss.xinhuanet.com/rss/food.xml"
anyone knows!help!Thank you!

hi,I met an exception in using rssutils.tld
My code is:
<rss:feed url="http://rss.xinhuanet.com/rss/food.xml" feedId="food"/>
<rss:forEachItem feedId="food" startIndex="0" endIndex="5">
<rss:itemTitle feedId="food"/>
</rss:forEachItem>
and it worded well,but when I changed it to
<c:set var="url" value="http://rss.xinhuanet.com/rss/food.xml"/>
<rss:feed url="${url}" feedId="food"/>
<rss:forEachItem feedId="food" startIndex="0" endIndex="5">
<rss:itemTitle feedId="food"/>
</rss:forEachItem>
it had a exception:java.lang.NullPointerException .
I have a questtion,why couldn't I use the parameter url to replace the string "http://rss.xinhuanet.com/rss/food.xml"
anyone knows!help!Thank you!

Exception IndexOutOfBoundsException using Vector. Christmas homework!

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