Uploading an image

Question

Hello I would like to write a program where I can upload an image from my computer and have it displayed in the program. I understand that I need to use JFileChooser to do this but before I start writing code I want to know is it possible to achieve what I am trying? Any feedback will be appriciated thanks

Answer 1

smithbrian wrote:
..I got this code of the net I am trying to modify it and learn from it "so please bear with me"Put that code back in whatever deep, dark hole you found it in. It is so horrid it would take less time to write a simple example from scratch, than to detail the problems with it.
Try this code..
import java.awt.*;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.imageio.ImageIO;
import java.net.URL;
import java.io.IOException;
public class LoadImage {
  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        JFrame f = new JFrame("Load Image");
        f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        JFileChooser fileChooser = new JFileChooser();
        FileNameExtensionFilter filter = new FileNameExtensionFilter(
          "Image Files", "jpg", "gif", "png");
        fileChooser.setFileFilter(filter);
        int result = fileChooser.showOpenDialog(null);
        if ( result==JFileChooser.APPROVE_OPTION ) {
          try {
            GUI gui = new GUI(fileChooser.
              getSelectedFile().
              toURI().
              toURL());
            f.setContentPane(gui);
          } catch(Exception e) {
            f.setContentPane( new JLabel(e.getMessage()) );
        } else {
          f.setContentPane(new JLabel("Image load cancelled"));
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
class GUI extends JPanel {
  Image image;
  public GUI(URL imageUrl) throws IOException {
    super(new BorderLayout());
    image = ImageIO.read( imageUrl );
    JLabel imageLabel = new JLabel( new ImageIcon(image) );
    add(imageLabel);
  public Dimension getPreferredSize() {
    return new Dimension( image.getWidth(this), image.getHeight(this) );
}