How to take screen shot in java

This below program will take the screenshot in every 5 seconds interval


import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Timer;
import java.util.TimerTask;

import javax.imageio.ImageIO;

public class Test extends TimerTask{

private static int num = 0;
private static String FILE_PATH = "/data1/backup";

public static void main(String[] args) throws Exception{
Timer timer = new Timer();
timer.schedule(new Test(), 0, 5000);
}
private void takeScreenshot(){
try{
File file = new File(FILE_PATH);
final Robot rbt = new Robot();
Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
BufferedImage screenshot = rbt.createScreenCapture(screenRect);
ImageIO.write(screenshot, "jpg", new File(file + "/" + num + ".jpg"));
num++;
System.out.println("screenshot taken"+num);
}catch(Exception e){
System.out.println("Exception "+e);
}
}
@Override
public void run() {
takeScreenshot();

}

}