How Do To Represent A TimeTable Within Java?

Hi,
I know this question has been asked by many before but I did not find one that understood well.
Basically I am wanting to find out how I would represent a timetable within Java, I was looking into it and was told hashmaps where a good idea. But the more research I have done into this area there very little help there is.
Would any body like to point my on the right course of how to do this?
Thank You
Chris

ChrisUK wrote:
Thats what am trying to avoid, I don't what you guys to do that. Im looking for some guidance of what is the recommend tools/method's to use:
e.g. ArrayList, Array, HashMap.. so on.This is really bringing out the analogies! That is like saying, "I want to build a shed. Should I pick up a hammer or a screwdriver first?"
Design first, implement second.
What is a timetable? What are its attributes? Does it have components? What can it do? What application tasks involve a timetable? What other objects does it communicate with?

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