Making JList's selected index go away

Question

So I have a JList in my program and it starts with the selected index 0. However, during the program I want to do myJList.setSelectedIndex(-1) or something like that so that nothing is selected ? Hope I was clear. Thanks

Answer 1

JList has a method to clear the selection. See JList#clearSelection. Check JList#getSelectionModel and the ListSelectionModel API to discover what methods are available to alter the selection

Edit: since you indicated it does not work, I created a SSCCE showing the clearSelection works as expected

public class Test {
  public static void main( String[] args ) {
    try {
      SwingUtilities.invokeAndWait( new Runnable() {
        public void run() {
          JFrame frame = new JFrame( "TestFrame" );
          frame.getContentPane().setLayout( new BorderLayout(  ) );
          DefaultListModel listModel = new DefaultListModel();
          listModel.addElement("Jane Doe");
          listModel.addElement("John Smith");
          listModel.addElement("Kathy Green");
          final JList list = new JList( listModel );
          list.setSelectedIndex( 0 );
          frame.getContentPane().add( list, BorderLayout.CENTER );
          JButton clearSelectionButton = new JButton( "Clear selection" );
          frame.getContentPane().add( clearSelectionButton, BorderLayout.SOUTH );

          clearSelectionButton.addActionListener( new ActionListener() {
            public void actionPerformed( ActionEvent aActionEvent ) {
              list.clearSelection();
            }
          } );

          frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
          frame.pack();
          frame.setVisible( true );
        }
      } );
    } catch ( InterruptedException e ) {
    } catch ( InvocationTargetException e ) {
    }
  }
}

Answer 2

How about:

SwingUtilities.invokeLater(new Runnable() {

        @Override
        public void run() {
            jList.clearSelection();
        }
}

Another way:

    jButton1.addActionListener(
        (ActionListener)EventHandler.create(ActionListener.class, jList1, "clearSelection"));