Writing image to wbmp file in java

Question

I am having problem writing images to wbmp files by java using the javax.imageio.* class. Though wbmp is present in the list given by writer format names.
String[] writers = ImageIO.getWriterFormatNames();
System.out.println("Can write to -");
for ( String s : writers)
            System.out.println(s);
        }but my code to convert an image format is not working for wbmp files
File in=new File("star.png");
File out=new File("def.wbmp");
File out1=new File("def.jpg");
BufferedImage image;
try {
     image = ImageIO.read(in);
     ImageIO.write(image,"wbmp",out);
     ImageIO.write(image,"jpg",out1);
} catch (IOException e) {}the jpeg file is created successfully but the wbmp file remains empty. can you tell me where the problem is. Or is there some alternative method for image conversion.

Answer 1

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import javax.swing.*;
public class WirelessPrep {
    private JPanel getContent(BufferedImage image) {
        JPanel panel = new JPanel(new GridLayout(1,0));
        panel.add(wrap(image));
        panel.add(wrap(convert(image)));
        return panel;
    private BufferedImage convert(BufferedImage image) {
        // Convert to BufferedImage.TYPE_BYTE_BINARY
        BufferedImage binary = convert(image, BufferedImage.TYPE_BYTE_BINARY);
        BufferedImage wbmp = null;
        File file = new File("wirelessPrep.wbmp");
        try {
            ImageIO.write(binary, "wbmp", file);
            wbmp = ImageIO.read(file);
        } catch(IOException e) {
            System.out.println("io error: " + e.getMessage());
        return wbmp;
    private BufferedImage convert(BufferedImage src, int type) {
        int w = src.getWidth();
        int h = src.getHeight();
        BufferedImage dst = new BufferedImage(w, h, type);
        Graphics2D g2 = dst.createGraphics();
        g2.drawImage(src, 0, 0, null);
        g2.dispose();
        return dst;
    private JLabel wrap(BufferedImage image) {
        ImageIcon icon = new ImageIcon(image);
        JLabel label = new JLabel(icon, JLabel.CENTER);
        return label;
    public static void main(String[] args) throws IOException {
        String path = "images/bison.jpg";
        BufferedImage image = ImageIO.read(new File(path));
        JPanel panel = new WirelessPrep().getContent(image);
        JOptionPane.showMessageDialog(null, panel, "", -1);
}