Hi to all.

I am so new in this, I don't know how to finish my homework-question. I have to go to bed now ánd need to find an answer a.s.a.p. Who is willing to help this Dutch boy?

I have to count the number of cars in a carparking. So far so good. But:
If number of cars >100 there should popup an alert "GARAGE FULL"
If number of cars =0 there should popup an alert "GARAGE EMPTY"...