Java tutorial
import java.awt.Dimension; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; public class Main { public static void main(String args[]) { JTable table = new JTable(22, 5); table.setPreferredScrollableViewportSize(new Dimension(400, 300)); final JScrollPane scrollPane = new JScrollPane(table); JButton cornerButton = new JButton("#"); scrollPane.setCorner(JScrollPane.UPPER_TRAILING_CORNER, cornerButton); scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS); JFrame frame = new JFrame(); frame.add(scrollPane); frame.pack(); frame.setVisible(true); } }