robot.keyPress won't work properly in java for game trainer

Question

I want to create a game trainer for mount and blade, the game itself have cheat features in it and I want to take advantage of it.

For example when you want increase your money you should press ctrl + x but it's boring.

So I create a code that if you press ctrl + x 100 times for me but it's just working once and not 100 times.

try {
    Robot robot = new Robot();
    robot.delay(5000);
    robot.keyPress(KeyEvent.VK_CONTROL);

    for(int y = 0; y < 100; y++)
    {
        robot.keyPress(KeyEvent.VK_X);
    }
} catch (AWTException e) {
    e.printStackTrace();
}

Note:

1. If I put

    robot.keyPress(KeyEvent.VK_CONTROL) 

   in the for loop, the code won't work

2. If I put any robot.keyRelease in code it stops working

Why is it just working one time?

Answer 1

From the documentation , if you press a key, it will be pressed until you released it. So if you press Ctrl + X and then you press X in the loop you will be getting this Ctrl + X + X ...

try {
    Robot robot = new Robot();           
    robot.delay(5000);
    for(int y=0;y < 100 ; y++)
    {
      robot.keyPress(KeyEvent.VK_CONTROL);
      robot.keyPress(KeyEvent.VK_X);   

      robot.keyRelease(KeyEvent.VK_CONTROL);   
      robot.keyRelease(KeyEvent.VK_X);  
    }
    } catch (AWTException e) {
       e.printStackTrace();
    } 

EDIT:

Also, as XtremeBaumer said in the comments, probably the game could detect you are cheating if you "press" the keys so fast. Adding some delay between each iteration would make it worked.