Alternating row backgrounds on a JTable

Question

Howdy Partners,
I'm tryin' to get some examples of code that'll write a JTable with alternating background colour in the rows.
I need more than a couple of hints in a direction as I'm pretty green still. I've spent half the morning searching but can't find anything satisfactory.
Muchos gracias amigos.

Answer 1

Here is how you can do it.
import java.awt.Color;
import java.awt.Component;
import java.awt.event.MouseEvent;
import java.util.EventObject;
import javax.swing.DefaultCellEditor;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.WindowConstants;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class Temp extends JFrame {
     private JTable table = null;
     private TableModel model = null;
     public Temp() {
          super("Test");
          setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
          model = new AbstractTableModel() {
               public int getColumnCount() {
                    return 3;
               public int getRowCount() {
                    return 30;
               public Object getValueAt(int rowIndex, int columnIndex) {
                    return "CELL " + ((rowIndex + 1) * (columnIndex + 1));
               public boolean isCellEditable(int row, int col) {
                    return true;
          table = new JTable(model);
          table.setDefaultRenderer(Object.class, new MyTableCellRenderer());
          JScrollPane scroller = new JScrollPane(table);
          getContentPane().add(scroller);
          pack();
          setVisible(true);
     public static void main(String [] args) throws Exception {
          new Temp();
     class MyTableCellRenderer extends JLabel implements TableCellRenderer {
          public MyTableCellRenderer() {
               super();
               setOpaque(true);
          public Component getTableCellRendererComponent(JTable table,
               Object value, boolean isSelected, boolean hasFocus,
               int row, int column) {
               setText(String.valueOf(value));
               Color bgColor = Color.white;
               if(row % 2 == 0) {
                    bgColor = Color.lightGray;
               setBackground(isSelected ? Color.blue : bgColor);
               setForeground(isSelected ? Color.white : Color.black);
               setFont(table.getFont());
               return this;
}Sai Pullabhotla