interface vs abstract classes

[rosh72851]

Hey is there a good website, that explains using classes implementing interfaces, with the help of a full explained code. I have gone through website, but wasnt of much help. I have questions as to how to create a driver program like 'public static void main()'. There are several other questions as such about if a function is written in the interface; how to call objects of the class as input.

Please suggest.

[Fubarable]

1) Have you gone through the Sun tutorials on this subject? That's always where I start.
2) Please go into further details on just what you mean by a "driver program". You mention a static method, and as far as I know, static doesn't work with interfaces.
3) Have you tried creating an interface and used the interface name itself as a parameter to one of its methods? If so, did it compile?

[rosh72851]

I have not done anything. I just want to learn interfaces first, before implemeting. Also, how to call functions(i.e) how to create a driver program.
Ive gone through sun tutorial, but it just gives a brief introduction, not to the depth of what I need to know.

[Fubarable]

Again, what the heck do you mean by a "driver" program. Please go into a bit more detail, with examples if you can think of any as I'm not clear on just what you're trying to do.

[Fubarable]

Also, the Interface Tutorial that I've study at the Sun site seemed to go into quite a bit of detail, and in fact though it is all I've ever studied on the subject I feel quite comfortable with using this construct. Are you sure that you've been through the same tutorial as I? You can find it here:

Interfaces (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)

[rosh72851]

In a regular program that deals with basic class, I will have a main class(driver program) that initializes values, calls functions.

class XXX
{
    constructor()
    function a(){};
    function b(){};
    main()
    {
         function a();
         function b(){};
     }
}

how could I do this with an interface?

interface XXX
{
  function a();
  function b();
}
class YYY implements XXX
{
  constructor()
    function a(){};
    function b(){};
}

[Fubarable]

I'm sorry, it may be me, but I'm still not clear what the hang up is. Your driver I suppose would have variables of the interface type, would initialize it with a concrete class that implements the interface, and then would call the methods as needed.

[rosh72851]

I found a website that gives code examples to what I was asking.
Java Source Code Examples - Problems and solutions