JList selection questions

[Tod Sterben]

I want to open a new frame when a selection is made from a JList and send the value in the selected cell in the JList to the new frame.
How do I set up a listener to do that without the code (listed below) producing two rows and also two new windows, as shown below

0 [Cliff House Restaurant, 1090 Point Lobos Avenue, San Francisco - Outer Sunset, , California Cuisine]
0 [Cliff House Restaurant, 1090 Point Lobos Avenue, San Francisco - Outer Sunset, , California Cuisine]

public void valueChanged(ListSelectionEvent e) {
if (e.getValueIsAdjusting()) {
return;
}
if (theList.isSelectionEmpty()) {
return;
} else {
if (isDone == false) {
int index = theList.getSelectedIndex();
System.out.println(index + " " + theList.getSelectedValue());
Object theValue = theList.getSelectedValue();
String pString = theValue.toString();
Out2SecondGui newgoo = new Out2SecondGui((String) "two");
newgoo.drawMain();
isDone = true;
}
}
}
[ May 07, 2003: Message edited by: Tod Sterben ]

[Nathan Pruett]

Don't know why you're getting two calls... the e.getValueIsAdjusting() call should filter out the "deselected" event... perhaps you are registering two event listeners on your list?

This code is working out fine for me...

import java.awt.Dimension;
import java.awt.Toolkit;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
 
public class ListLauncher extends JFrame {
    
    private JList list;
    private int x, y;
    
    public ListLauncher() {
        super( "ListLauncher" );
        x = 100;
        y = 100;
        String[] data = { "Piro", "Largo", "Erika", "Kimiko", "Ping", "Miho", "Dom", "Ed" };
        
        list = new JList( data );
        JPanel p = new JPanel();
        JLabel l = new JLabel( "Choose Wisely: " );
        p.add( l );
        p.add( new JScrollPane( list ) );
        getContentPane().add( p );
        
        list.addListSelectionListener( new ListSelectionListener() {
            public void valueChanged( ListSelectionEvent evt ) {
                if ( !evt.getValueIsAdjusting() ) {
                    JList l = (JList)evt.getSource();
                    JFrame f = new DataFrame( l.getSelectedValue().toString() );
                    f.setDefaultCloseOperation( DISPOSE_ON_CLOSE );
                    f.pack();
                    Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
                    if ( x > screen.width ) {
                        x = 0;
                    }
                    if ( y > screen.height ) {
                        y = 0;
                    }
                    f.setLocation( x, y );
                    f.setVisible( true );
                    x += f.getWidth();
                    y += f.getHeight();
                }
            }
        } );
        
        setDefaultCloseOperation( EXIT_ON_CLOSE );
        setSize( 300, 300 );
        setVisible( true );
    }
 
    public static void main(String[] args) {
        new ListLauncher();
    }
    
    private static class DataFrame extends JFrame {
        
        public DataFrame( String data ) {
            super( data );
            JLabel l = new JLabel( data );
            getContentPane().add( l );
        }
    } 
}