time schedule rate rpoblem

[Ericyue]

Hi,

i have a program which should will print screen every 0.1s but when i compile and run, it print screen 2seconds 1 times but not print once/0.1seconds . below is my code


import java.awt.Toolkit;
import java.util.Timer;
import java.util.TimerTask;

import java.awt.image.BufferedImage;
import java.awt.Rectangle;
import java.awt.Dimension;
import java.awt.Robot;
import java.io.File;
import javax.imageio.ImageIO;

/**
* Schedule a task that executes once every second.
*/

public class Main {
Toolkit toolkit;

Timer timer;

public Main() {
toolkit = Toolkit.getDefaultToolkit();
timer = new Timer();
timer.scheduleAtFixedRate(new RemindTask(), 0, //initial delay
100); //execute the code 1 seconds 1 time
}

class RemindTask extends TimerTask {
public void run() {

try {
Toolkit tool = Toolkit.getDefaultToolkit();

Dimension d = tool.getScreenSize();
Rectangle rect = new Rectangle(1024,768);
Robot robot = new Robot();
Thread.sleep(2000);


File f = new File("screenshot.jpg");
BufferedImage img = robot.createScreenCapture(rect);
ImageIO.write(img,"jpeg",f);


} catch(Exception e){}




}//close public void run
}//close class Reminder

public static void main(String args[]) {
new Main();
}//close public void main
}//close class main




is anyone what is the error/bug there that make the time schedule works incorrectly ?

thanks in advance for the reply

[wsaryada]

I think it is because you have a two seconds delay in you RemindTask.run() method.

Thread.sleep(2000); // two seconds

[Ericyue]

thanks so much . so i neglect that part .. very thanks for your help ..