How to Control the "Button is pressed" ?

Hola como estas?
“Except you give me something i can feeeeeeel”
ok sorry for that , anyway haha :

I have a little problem… in game update i have this :

http://img543.imageshack.us/img543/7962/missileshottoofastd.jpg

If i press backspace just one time , it shoots 3 missiles in one time… How can i control that? i want a delay… i tried to make some System.currentmilis etc but, well, i couldnt make it work.

I was looking for some gdx method to tell me when the button is released but couldnt find it.

How can i “fix” that ?

:smiley: