import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
public class Main {
public static void main(String[] argv) throws Exception {
Robot robot = new Robot();
int x = 100;
int y = 100;
int width = 200;
int height = 200;
Rectangle area = new Rectangle(x, y, width, height);
BufferedImage bufferedImage = robot.createScreenCapture(area);
// Capture the whole screen
area = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
bufferedImage = robot.createScreenCapture(area);
}
}