Table Row Header Example : Grid Table « Swing Components « Java

Table Row Header Example

Table Row Header Example
// Example from
/* (swing1.1beta3) */
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;

 * @version 1.0 11/09/98

class RowHeaderRenderer extends JLabel implements ListCellRenderer {

  RowHeaderRenderer(JTable table) {
    JTableHeader header = table.getTableHeader();

  public Component getListCellRendererComponent(JList list, Object value,
      int index, boolean isSelected, boolean cellHasFocus) {
    setText((value == null) ? "" : value.toString());
    return this;

public class RowHeaderExample extends JFrame {

  public RowHeaderExample() {
    super("Row Header Example");
    setSize(300, 150);

    ListModel lm = new AbstractListModel() {
      String headers[] = { "a", "b", "c", "d", "e", "f", "g", "h", "i" };

      public int getSize() {
        return headers.length;

      public Object getElementAt(int index) {
        return headers[index];

    DefaultTableModel dm = new DefaultTableModel(lm.getSize(), 10);
    JTable table = new JTable(dm);

    JList rowHeader = new JList(lm);

        + table.getRowMargin());
    //                           + table.getIntercellSpacing().height);
    rowHeader.setCellRenderer(new RowHeaderRenderer(table));

    JScrollPane scroll = new JScrollPane(table);
    getContentPane().add(scroll, BorderLayout.CENTER);

  public static void main(String[] args) {
    RowHeaderExample frame = new RowHeaderExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {


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