🚀 go-pugleaf

Hi,
    I want to know how can i capture the screen in java, when i use
following part of code in  my applet, then it will said that unable to
construct Robot, but before i add this part of the code, my applet can
run it normally.

The part of the code:

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.applet.*;
import javax.swing.*;

....
public void update(Graphics g){
    Robot robot;
    Rectangle cap_screen_rec;

  try{
   robot = new Robot();
  }
  catch(Exception e){throw new RuntimeException
   ("unable to construct Robot");
  }
   cap_screen_rec = new Rectangle(0, 0, 100, 100);
   Image offscreen = robot.createScreenCapture(cap_screen_rec);
.....}
....}

Kenny