Interfaces and Classpath

Question

Hi..
I have this question regarding the use of interface..Since java doesnt provide multiple inheritance capability it provides the interface.. So my question is when we write down some piece of code for example
public interface Moveable{
\\ methods()
}and save it as Moveable.java
and then we implement it in a class known as Car for example... Such as
class Car extends LandVehicle implements Moveable{Do we have to specify the classpath to make use of the Moveable file..
I really dont understand how to set up the class path.. I studied some notes on setting up class path after learning about packages that user makes and importing them.. And i didnt understand v well..
I am using Windows OS and if someone could help me understand the concept behind using interface as well as the classpath.. It would be really appreciated..

Answer 1

I really dont understand how to set up the class path..
I studied some notes on setting up class path after learning
about packages that user makes and importing them.. And
i didnt understand v well..Java has big barriers to entry: it's a pain to set up the sdk on your computer, and learning how to compile programs is fairly difficult. But, it's something you need to learn, so start reading everything you can find on how to compile and execute java programs.
Here is a sun tutorial on setting the classpath:
http://java.sun.com/j2se/1.3/docs/tooldocs/win32/classpath.html
If you want specific help, you have to post:
1) The name of the file you are trying to compile and execute
2) Any package statement in the file
3) The full directory structure of where your file is located
4) The prompt on the command line where you are typing your commands
5) The command you typed in