import java.awt.*;
import javax.swing.*;

public class MyList extends JFrame {

        private JList list;
        private JButton m_addButton;

        public MyList() {
                setTitle("Scrollable JList");

                Object[] items = {"aa", "aaa", "aaaa", "aaaaa", "aaaaa",
                "aaaaaa", "aaaaaaa", "aaaaaaaa", "aaaaaaaaa", "aaaaaaaaa",
                "b", "bb", "bbb", "bbbb", "bbbbb", "bbbbbb", "bbbbbbb"};
                list = new JList(items);
                JScrollPane scrollPane = new JScrollPane(list);
                getContentPane().add(list, BorderLayout.CENTER);

                pack();
                show();
        }

        public static void main(String[] args) {
                new MyList();
        }

}