public static void main(String[] args) throws IOException {

        URL url = new URL("http://yandex.st/morda-logo/i/logo.png"
        );
        File f = new File("item.png");

        BufferedInputStream inputStream = new BufferedInputStream(url.openStream());

        byte[] buffer = new byte[30];
        int n;
        FileOutputStream outputStream = new FileOutputStream(f);

        while ((n = inputStream.read(buffer)) >= 0) {
            outputStream.write(buffer, 0, n);
        }
    }