import javax.swing.JList;
import javax.swing.JScrollPane;
public class Main {
public static void main(String[] argv) throws Exception {
String[] items = { "A", "B", "C", "D" };
JList list = new JList(items);
JScrollPane scrollingList = new JScrollPane(list);
// Make the number of rows dynamic
list.setVisibleRowCount(0);
}
}