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How can I accept JList selection by SpaceBar?

glynco asked
Last Modified: 2012-05-05
How can I accept JList selection by SpaceBar?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class NewClass extends JPanel {
    String label[] = { "Zero","One","Two","Three","Four","Five","Six",
                       "Seven","Eight","Nine","Ten","Eleven" };
    JList list;
    JButton button;
    //JFrame frame;
    public NewClass( ) {
        this.setLayout(new BorderLayout( ));
        list = new JList(label);
        JScrollPane pane = new JScrollPane(list);
        button = new JButton("Print");
        button.addActionListener(new PrintListener( ));
        add(pane, BorderLayout.CENTER);
        add(button, BorderLayout.SOUTH);
    class PrintListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            int selected[] = list.getSelectedIndices( );
            System.out.println("Selected Elements:  ");
            for (int i=0; i < selected.length; i++) {
                String element =
                      (String)list.getModel( ).getElementAt(selected[i]);
                System.out.println("  " + element);
    public static void main(String s[]) {
         JFrame frame = new JFrame("Simple List Example");
         NewClass newclass = new NewClass( );
         //frame.setContentPane(new NewClass());
         javax.swing.JRootPane rootPane = frame.getRootPane();
         //frame.addWindowListener(new NewClass().new WindowDemoAdapter( )); 
         frame.addWindowListener(new NewClass(). new WindowDemoAdapter());
         frame.setSize(250, 200);
class WindowDemoAdapter extends WindowAdapter {
public void windowClosing(WindowEvent e) {
//WindowDemo.this.setVisible(false); // window will close
//WindowDemo.this.dispose( ); // and be freed up.
} ///

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