By default a item in a JList should selected

Hi
I need a item in the JList should be selected(not the first item) by default while I am creating a new instances for the JList.
Note: I am rendering a button in the JList.
with regrads
senthil kumar

You should be able to use either of the following methods of JList: setSelectedIndex(defaultIndex); or setSelectedValue(defaultObject, shouldScroll);Is one of these what you are looking for?

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I'm developing a Java GUI application which uses some JLists. I've seen that, when an item of the JList is selected and you click the mouse another time in the same selected item, the selection does not "disappear". Now, the only way I know to do this is tho press Control + click in the selected item.
I would like that, when I click to the selected item of a list, the selection disappears.
How can I solve that?
Lots of thanks for your help.

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But i was thinking if there is any better way to do that?
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see bugid: 4654916 - it does say that the the
scrolling for the JList should now work with keyboard
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Programatically Select an Item in a JList

Hi,
I need to do this: Programmatically select an item in a JList.
JList.selectItem(0) will select the item 0 in the model but it will NOT visually highlight the selected item in the list.
Neither will ensureIndexIsVisible(0),
I need to automatically select and item in a list (highlight that item as well)
As if someone has clicked on that item with the mouse.. however they haven't you see, my program has done it, programatically.
Please don't refer me to the beginners guide to java, or the API documentation, the answer is not there.
Thanks

Swing related questions should be posted in the Swing forum.
Please don't refer me to the beginners guide to java, or the API documentation, the answer is not there.Yes it is.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

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Can u pls help me out to implement this(I m using Netbeans 5.5):
I want to move items from one JList to other thru a ADD button placed between JLists, I am able to add element on Right side JList but as soon as compiler encounter removeElementAt() it throws Array Index Out of Bound Exception
and if I use
removeElement() it removes all items from left side JList and returns value false.
Pls have a look at this code:
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
Object selItem = jList1.getSelectedValue();
int selIndex = jList1.getSelectedIndex();
DefaultListModel model = new DefaultListModel();
jList2.setModel(model);
model.addElement(selItem);
DefaultListModel modelr = new DefaultListModel();
jList1.setModel(modelr);
flag = modelr.removeElement(selItem);
//modelr.removeElementAt(selIndex);
System.out.println(flag);
}

hi Rodney_McKay,
Thanks for valuable time but my problem is as it is, pls have a look what I have done and what more can b done in this direction.
Here is the code:
import javax.swing.DefaultListModel;
import javax.swing.JList;
public class twoList extends javax.swing.JFrame {
/** Creates new form twoList */
public twoList() {
initComponents();
//The code shown below is automatically generated and we can�t edit this code
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList();
jButton1 = new javax.swing.JButton();
jScrollPane2 = new javax.swing.JScrollPane();
jList2 = new javax.swing.JList();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jList1.setModel(new javax.swing.AbstractListModel() {
String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
public int getSize() { return strings.length; }
public Object getElementAt(int i) { return strings[i]; }
jList1.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
jList1ValueChanged(evt);
jScrollPane1.setViewportView(jList1);
jButton1.setText("ADD>>");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
jScrollPane2.setViewportView(jList2);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(31, 31, 31)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 63, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(78, Short.MAX_VALUE))
layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jScrollPane1, jScrollPane2});
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(62, 62, 62)
.addComponent(jButton1))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(159, Short.MAX_VALUE))
layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {jScrollPane1, jScrollPane2});
pack();
}// </editor-fold>
//automatic code ends here
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
        jList1 = new JList(new DefaultListModel());
        jList2 = new JList(new DefaultListModel());
         Object selItem = jList1.getSelectedValue();
         System.out.println(selItem);
        ((DefaultListModel) jList1.getModel()).removeElement(selItem);
        ((DefaultListModel) jList2.getModel()).addElement(selItem);
//Now trying with this code it is neither adding or removing and the value �null� is coming in �selItem� .It may be bcoz JList and Jlist are already instantiated in automatic code. So, I tried this:
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
         Object selItem = jList1.getSelectedValue();
         System.out.println(selItem);
        ((DefaultListModel) jList1.getModel()).removeElement(selItem);
        ((DefaultListModel) jList2.getModel()).addElement(selItem);
//Now with this as soon as I click on �jButton1�, it is throwing this error:
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: twoList$1 cannot be cast to javax.swing.DefaultListModel
        at twoList.jButton1ActionPerformed(twoList.java:105)
        at twoList.access$100(twoList.java:13)
        at twoList$3.actionPerformed(twoList.java:50)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6038)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
        at java.awt.Component.processEvent(Component.java:5803)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4410)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2429)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

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hi i am trying to get selected items from a Jlist to print out
but can only seem to get one item at a time using getSelectedValue()
when i try and use getSelectedValues().toString(); i get
the following print out [Ljava.lang.Object;@ed783f68 can anyone show me
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cheers
submitdetails.addActionListener(
                                               new ActionListener() {
                                                       public void actionPerformed( ActionEvent e )
                                                  String data = privilegesList.getSelectedValue().toString();
                                                  Object data2 = privilegesList.getSelectedValues().toString();
                                                  System.out.println(data);
                                                  System.out.println(data2);


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Plz reply .

Hi
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Aslam o Alikum (Hi)
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