Keyboard automation Matlab 2016

How can I automate keyboard in the sense if I put a condition and it matches then it should press the next arrow?

I was using this

 key.keyPress  (java.awt.event.KeyEvent.VK_RIGHT);

             key.keyRelease  (java.awt.event.KeyEvent.VK_RIGHT );

But it doesn't seem to be working in Matlab 2016