Main method in mulitple classes?

I'm new to java as some of you might know, and I've been working on a single class. Now I'm trying to add another class. I've tried many ways to do this, and I think I almost have it, but I'm still a little stuck. Here are a few questions:
1. I only can have one main method, which goes in the main class, right? Then the subclasses just have methods? So, how does the subclass know which methods to call first, and when? If there is a main method in the subclasses, t should be private and the main method in the main class should be public? So if I have multiple methods in a subclass, how do I tell my main method which to call? I've tried:
new Timer.test();
new Timer(test);Neither seem to work.
So, organized in a tree it should be like so:
Public class mainClass
     public main method
          new subClass
Private class subClass
      (no main method?)
          private subClassMethod1
          private subClassMethod2I've tried searching, but maybe I'm not searching for the right terms. I can find things on creating classes and methods, but not really on the way multiple classes are set up. Can someone explain so I understand exactly what I'm doing with multiple classes, or give me a link to a good explanation? Thanks
Also, the subclass ALWAYS extends mainClass right?
Edited by: LIVE3A17 on Apr 28, 2009 3:13 PM

LIVE3A17 wrote:
Ok, so I can use main methods in the other classes, and java knows which is the main class by which one is opened when the program is run. Got it. Don't even put a main method in the other classes, unless you intend on one of them to be an entry point. Otherwise it's just code bloat.
>
Now, I have a main method in both classes. When I have the main method in the main class set to public, I get an error in the second class saying "Cannot reduce the visiblity of the inherited method". I gives me the option to change visibilty of my main class to private. However, when I do this, and try to run the main class, I get an error saying main method not public.I don't know what you're talking about. Sounds like you are subclassing something and for whatever reason trying to 'override' the main method. The normal static main method isn't even inherited, being static. So this error you're speaking of doesn't make much sense. Of course without seeing your code, we're left to mindreading exercises which usually don't go so well.

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