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Creating a BufferedImage from an Image object

import java.awt.Graphics; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import javax.imageio.ImageIO; import javax.swing.ImageIcon; public class Main {   public static void main(String[] argv) throws Exception {     Image  img = new ImageIcon("test.png").getImage();     BufferedImage bufferedImage = new BufferedImage(img.getWidth(null), img.getHeight(null),         BufferedImage.TYPE_INT_RGB);     Graphics g = bufferedImage.createGraphics();     g.drawImage(img, 0, 0, null);     g.dispose();     ImageIO.write(bufferedImage, "png", new File("a.png"));   } }