This is a Processing sketch that looks like one of those BS security systems in the movies. Picture this, a bomb is going to go off unless the hero cop hacks 'a system'.
Damsel: "Oh no! We don't have the password!"
Hero Cop: "And the bomb is going to go off in one minute."
Damsel: "We're dead!"
Hero Cop: "I'll break the mainframe password."
Damesel: "You can do that?"
Hero Cop: "Sure. But I'll have to arrest myself for ..."
[sunglasses]
"... breaking and entering."
Get yourself a copy of Processing, failing that, there's some screenshots you can see here below (sshot_1.png etc). Failing that, there's a page on my blog that you can check out the applet version of this thing. It's best if you download the app and run it yourself if you're shooting a movie:
The password is muffin.
After the password is entered (enter key), you're in. It doesn't do anything after that. Hit ESC to quit.