JTable Row Height Problem

Edsoncv <edsoncv@gmail.com>
Tue, 19 Feb 2008 07:07:26 -0800 (PST)
       I'm having the following problem while configuring a JTable row
The fact is when my row height does not have the exactly heigth of
"row header", exactly figure bellow:


The line height seems almost the same but this little difference
increases as the # of rows increase or the look and feel is changed.

My code is very similar like this:

/* (swing1.1beta3) */

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

 * @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",
      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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