Automate Click and Keyboard Events from Java

Java program to automate keyboard key press and mouse click events  

import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;

public class Test {
 public static void main(String[] args){
  try {
      Robot robot = new Robot();
      robot.mouseMove(100, 100);
      
      robot.mouseMove(400, 200);
      // Simulate a mouse click
      robot.mousePress(InputEvent.BUTTON1_MASK);
      robot.mouseRelease(InputEvent.BUTTON1_MASK);
      robot.keyPress(KeyEvent.VK_ALT);
            robot.keyPress(KeyEvent.VK_TAB);
      robot.keyRelease(KeyEvent.VK_ALT);
            robot.keyRelease(KeyEvent.VK_TAB);

      // Simulate a key press
      while(true){
       Thread.sleep(2000);
       robot.mousePress(InputEvent.BUTTON1_MASK);
       robot.mouseRelease(InputEvent.BUTTON1_MASK);
       robot.keyPress(KeyEvent.VK_A);
       robot.keyRelease(KeyEvent.VK_A);
      }
  } catch (AWTException e) {
   e.printStackTrace();
  } catch (InterruptedException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
}