Java tutorial
import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.Image; import java.awt.image.BufferedImage; import java.net.URL; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.SwingUtilities; public class Main { public static void main(String[] args) throws Exception { URL urlImage1 = new URL("http://www.java2s.com/style/download.png"); final Image fgImage = ImageIO.read(urlImage1); int w = fgImage.getWidth(null); int h = fgImage.getHeight(null); final BufferedImage bgImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); final BufferedImage finalImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); Graphics2D g = finalImage.createGraphics(); g.drawImage(bgImage, 0, 0, null); g.drawImage(fgImage, 0, 0, null); g.dispose(); Runnable r = new Runnable() { @Override public void run() { JPanel gui = new JPanel(new GridLayout(1, 0, 5, 5)); gui.add(new JLabel(new ImageIcon(bgImage))); gui.add(new JLabel(new ImageIcon(fgImage))); gui.add(new JLabel(new ImageIcon(finalImage))); JOptionPane.showMessageDialog(null, gui); } }; SwingUtilities.invokeLater(r); } }