List Model Controls - The Definitive Guide to Java Swing - page 477

public void setSelectionBackground(Color newValue) {
sourceList.setSelectionBackground(newValue);
destList.setSelectionBackground(newValue);
}
public Color getSelectionBackground() {
return sourceList.getSelectionBackground();
}
public void setSelectionForeground(Color newValue) {
sourceList.setSelectionForeground(newValue);
destList.setSelectionForeground(newValue);
}
public Color getSelectionForeground() {
return sourceList.getSelectionForeground();
}
private void clearSourceSelected() {
Object selected[] = sourceList.getSelectedValues();
for (int i=selected.length-1; i >= 0; --i) {
sourceListModel.removeElement(selected[i]);
}
sourceList.getSelectionModel().clearSelection();
}
private void clearDestinationSelected() {
Object selected[] = destList.getSelectedValues();
for (int i=selected.length-1; i >= 0; --i) {
destListModel.removeElement(selected[i]);
}
destList.getSelectionModel().clearSelection();
}
private void initScreen() {
setBorder(BorderFactory.createEtchedBorder());
setLayout(new GridBagLayout());
sourceLabel = new JLabel(DEFAULT_SOURCE_CHOICE_LABEL);
sourceListModel = new SortedListModel();
sourceList = new JList(sourceListModel);
add(sourceLabel,
new GridBagConstraints(0, 0, 1, 1, 0, 0, GridBagConstraints.CENTER,
GridBagConstraints.NONE, EMPTY_INSETS, 0, 0));
add(new JScrollPane(sourceList),
new GridBagConstraints(0, 1, 1, 5, .5, 1, GridBagConstraints.CENTER,
GridBagConstraints.BOTH, EMPTY_INSETS, 0, 0));
addButton = new JButton(ADD_BUTTON_LABEL);
add(addButton,
new GridBagConstraints(1, 2, 1, 2, 0, .25, GridBagConstraints.CENTER,
GridBagConstraints.NONE, EMPTY_INSETS, 0, 0));
addButton.addActionListener(new AddListener());
removeButton = new JButton(REMOVE_BUTTON_LABEL);