Convert a Graphics2D to an Image or BufferedImage

Question

I have a little problem here.

I have an applet, where user can \"draw\" inside it. To do that, I use the java.awt.Graphics2D. But, how can I do to save the user draw

Answer 1

If you'd like to draw JComponent's image onto BufferedImage (JApplet extends JComponent):

JComponent whatToDraw = ...;
BufferedImage img = new BufferedImage(whatToDraw.getWidth(), 
        whatToDraw.getHeight(), BufferedImage.TYPE_INT_RGB);
whatToDraw.printAll(img.getGraphics());

And to write its data to JPEG file:

ImageIO.write(img, "jpg", new File("something.jpg"));