Java Graphics How to - Paint tabular data into PNG image file

Question

We would like to know how to paint tabular data into PNG image file.
Answer

/*  w w  w.j  a  v a 2s.c  om*/
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;

public class Main {

  public static void main(String[] args) throws Exception {
    Object[][] data = {
        { "A", new Integer(3), new Double(7.23), new Boolean(true) },
        { "J", new Integer(2), new Double(4.64), new Boolean(false) },
        { "S", new Integer(1), new Double(8.81), new Boolean(true) } };

    String[] columns = { "Col", "Col", "Col", "Col" };

    JTable table = new JTable(data, columns);
    JScrollPane scroll = new JScrollPane(table);

    JFrame f = new JFrame();
    f.setContentPane(scroll);
    f.pack();

    int x = (int) table.getTableHeader().getSize().getWidth();
    int y = (int) table.getTableHeader().getSize().getHeight() + (int) table.getSize().getHeight();

    BufferedImage bi = new BufferedImage((int) x, (int) y,
        BufferedImage.TYPE_INT_RGB);

    Graphics g = bi.createGraphics();
    table.getTableHeader().paint(g);
    g.translate(0, table.getTableHeader().getHeight());
    table.paint(g);
    g.dispose();

    JOptionPane.showMessageDialog(null, new JLabel(new ImageIcon(bi)));
    ImageIO.write(bi, "png", new File("c:/Java_Dev/table.png"));

    System.exit(0);
  }
}