JTable

[francis varkey]

Respected Sirs,

I have a JTable .Can I make the background color of the last row ?

Thanks in advance

[Anand Karia]

I think you must go through this.

java.sun.com/j2se/1.4.2/docs/api/javax/swing/JTable.html

[Nathan Pruett]

 
import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import java.util.Random;
import java.awt.*;
 
public class TableTest {
 
    public TableTest() {
 
        String[] colNames = {"Column1", "Column2", "Column3"};
        Object[][] data = generateRandomData(colNames);
        JTable table = new JTable(data, colNames);
 
        table.setDefaultRenderer(Object.class, new LastLineRenderer());
 
        JFrame frame = new JFrame("TableTest");
        frame.getContentPane().add(new JScrollPane(table));
 
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(640, 480);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
 
    private Object[][] generateRandomData(String[] colNames) {
        Random r = new Random();
        Object[][] data = new Object[r.nextInt(20)][colNames.length];
 
        for (int row = 0; row < data.length; row++) {
            for (int col = 0; col < colNames.length; col++) {
                data[row][col] = new Integer(r.nextInt());
            }
        }
 
        return data;
    }
 
    public static void main(String[] args) {
        new TableTest();
    }
 
    private class LastLineRenderer extends DefaultTableCellRenderer {
        public Component getTableCellRendererComponent(JTable table, Object value,
                          boolean isSelected, boolean hasFocus, int row, int column) {
            Component c = super.getTableCellRendererComponent(table, value, isSelected,
                        hasFocus, row, column);
            if (row == table.getRowCount() - 1) {
                c.setBackground(Color.GREEN);
            }
            else {
                c.setBackground(table.getBackground());
            }
            return c;
        }
    }
}