Downloads current image of Rivne webcam every 6 seconds.

ImageDownloader.java

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Timer;
import java.util.TimerTask;

public class ImageDownloader extends Timer {
    public static void main(String[] args) {
        int delay = 0;
        int period = 6000;

        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
            public void run() {
                BufferedImage image = null;
                try {
                    URL url = new URL("http://91.237.244.6/files/image.jpg");
                    image = ImageIO.read(url);

                    long unixTime = System.currentTimeMillis() / 1000L;
                    System.out.println(unixTime);

                    ImageIO.write(image, "jpg", new File("E:\\" + unixTime + ".jpg"));
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }, delay, period);
    }
}