urgent help needed by many students of our class

this is the question given to us in the assignment programs which is very difficult for all the comp students.so please help. confused

Q.Imagine a tollbooth at a bridge.cars passing by the booth are expected to pay Rs.50/- toll.Mostly they do, but sometimes a car goes by without paying.The Tollbooth keeps a track of the number of cars that have gone by and of the total amout of money collected.
Model this tollbooth with a class called Tollbooth. The 2 data items are integers to hold the total no. of cars and a type double to hold amount of money collected.a constuctor initializes both these to 0.A function called payingcar() increments the car total and adds Rs.50/- to the cash total .Another function called nonpayingcar() increments the car total. Finally a function calleddisplay(), displays the 2 totals.

Include a program to test this class. This program should allow the user to push one key to count a paying car and another to count a non paying car. Pushing the ESC key should cause the program to print out the total cars and total cash and then exit.