[SOLVED] Interfaces in Java

[MuslimCoder]

Hello,

I would like to know more about the interfaces in java, I have read up a bit about interfaces from the "Really Big Index", I think I have still have some question's unanswered, particularly as to HOW it would be useful in a company that wants to do separate parts of a software then bring it together?

Thanks

[arunarivanandam]

see this site, you can learn more about interfaces. Let me know whether it's useful.

ride2java.com

[angryboy]

HOW it would be useful in a company that wants to do separate parts of a software then bring it together?

i feel a need to quote paul on this:

Many things that are in Java do not make a lot of sense
if you have learned to program in another language already.

Java is quite advanced, and its compiler oversees a program
in the style of a project manager.

View the abstract class this way:

You are working with a team of programmers. Certain
specifications on the project are handed down to the
programmers, who study them, then work to make the
project come together.

Rather than have a project engineer bring everyone
together to 'discuss' changes to the project, or
maybe send out a memo, you are given "Abstract classes"
of which you are to extend, or expect to find your
fellow programmers extending into objects that can be
instanciated.

If you show ignorance of this policy, expect to become
unemployed shortly.

As a solitary programmer working on your own home brewed
project, you probably won't decide that an Abstract class
is needed. Its purpose is to get a group of programmers
'on the same page' so to speak, to get everyone conforming
to the dictates from above.

see this page for more detail: [SOLVED] Abstraction: Pillar of OOP?

edit:
err... when reading, replace abstract classes w/ interfaces.

[MuslimCoder]

Thanks Angry boy, I think I get it now. Reading this makes me understand why our tutor gives us lab exercises which are basically to extend a class to create a new one with some specified fn.

arunarivanandam, thank you for your help also. The website looks simple and is compressed, sometimes that's the best way to get an idea of a concept.