使一个项目的罐子可用于另一个从属项目

Question

I have two projects X and Y. ProjectX needs jars so I added them to its classpath. ProjectY needs the classes in ProjectX but also needs the classes in the jars that were added to ProjectX. When I add ProjectX to ProjectY's class path, I get an error that Eclipse doesn't find the classes of the jars in its classpath. How to solve this? I mean is the only choice is to also add the jars to ProjectY's class path?

Answer 1

It seems you have cross references.

Class A in jar X needs class B in jar Y. But class B also need class A...

Solution: Create a superclass for A in jar Y.

In jar X:

• Class A (extends GenericA)

In jar Y:

• Class GenericA
• Class B

Another solutionis to define an interface in jar Y that class A could implement in jar X.