Java Basic(72)-Multiple Selection List

import javax.swing.event.*;

public class Gui extends JFrame{

private JList leftlist;

private JList rightlist;

private JButton movebutton;

private static String[] food = {"bacon","wings","ham","beef","more"};

public Gui(){

super("title");

setLayout(new FlowLayout());

leftlist = new JList(food);

leftlist.setVisibleRowCount(3);

leftlist.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

add(new JScrollPane(leftlist));

movebutton = new JButton("Move -->");

movebutton.addActionListener(

new ActionListener(){

public void actionPerformed(ActionEvent event){

rightlist.setListData(leftlist.getSelectedValues());

}

}

);

add(movebutton);

}

}