java swing image slide show

java swing image slide show

 this image slider is coded with java swing API.its a very basic image slider.but it use some advanced java functions to make it work better.

opening DIR 

  if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
            if (chooser.getSelectedFile().isDirectory()) {
                filesInDirectory = chooser.getSelectedFile().listFiles();
            }
        } else {
            System.out.println("No Selection ");
        }

play

 if (filesInDirectory == null) {
            return;
        }
        for (File file : filesInDirectory) {
            if (file.getName().toLowerCase().endsWith(".jpg") || file.getName().toLowerCase().endsWith(".png")) {
                imagelist.add(file.getName());
            } else {
                System.out.println("nope!");
            }
        }
        jLabel3.setText("" + filesInDirectory.length);
        loadimg();

loadimg

public void loadimg() {
        SwingWorker<Void, Void> worker = new SwingWorker<Void, Void>() {
            @Override
            protected Void doInBackground() throws Exception {
                int i;
                for (i = 0; i <= imagelist.size(); i++) {
                    String next = imagelist.get(i);
                    Thread.sleep(2000);
                    //System.out.println("" + next);
                    ImageIcon iconLogo = new ImageIcon("Images/" + next);
                    Image img = iconLogo.getImage().getScaledInstance(jLabel2.getWidth(), jLabel2.getHeight(), Image.SCALE_SMOOTH);
                    jLabel2.setIcon(new ImageIcon(img));
                    System.out.println("" + i);
                    if (i == imagelist.size() - 1) {
                        i = 0;
                    }
                }
                return null;
            }
        };
        worker.execute();
    }

download files : https://github.com/stark9000/java-_simple_slide_show