Add text to an image in Java

import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.net.URL;

import javax.imageio.ImageIO;

public class Graph {
public static void main(String[] args) throws Exception {
final BufferedImage image = ImageIO.read(new URL(
"http://upload.wikimedia.org/wikipedia/en/2/24/Lenna.png"));

Graphics g = image.getGraphics();
g.setFont(g.getFont().deriveFont(30f));
g.drawString("Hello World!", 100, 100);
g.dispose();

ImageIO.write(image, "png", new File("test.png"));
}
}