import javax.swing.DefaultListModel;
import javax.swing.JList;
public class Main {
public static void main(String[] argv) throws Exception {
DefaultListModel model = new DefaultListModel();
JList list = new JList(model);
// Remove the first item
int pos = 0;
model.remove(pos);
// Remove the last item
pos = model.getSize() - 1;
if (pos >= 0) {
model.remove(pos);
}
// Remove all items
model.clear();
}
}