Class that uses a class with the same name

Question

Say you have created a class called X and one of your methods in class X needs to return an instance of class X but this time the class X has the same name but it is another class from a jar file that just happens to have the same name. Is there a way to reference which class X you want?

The first sentence is too long to understand. can you show us exactly what is your problem? — Dimitri, Aug 16 '11 at 15:03
I believe that this thread answers your question: [http://stackoverflow.com/questions/2079823/importing-two-classes-with-same-name-how-to-handle][1] [1]: http://stackoverflow.com/questions/2079823/importing-two-classes-with-same-name-how-to-handle — Travis Nelson, Aug 16 '11 at 15:07

score 3 · Answer 1 · answered Aug 16 '11 at 15:03

3

As long as they have different package names, refer to the class from the other jar file by its fully qualied name, as in com.packagename.X.

answered Aug 16 '11 at 15:03

Brigham

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Buhake Sindi · Answer 2 · 2011-08-16T15:08:51.790

Yes, by specifying a fully qualified class name (as you can't have 2 identical class names in the same package).

E.g. let's say you have 2 classes with the same names (in 2 diferent package)

za.org.myDomain.factory.ClassAFactory
za.org.myDomain.subDomain.factory.ClassAFactory

and have imported only 1 of the class:

import za.org.myDomain.factory.ClassAFactory;

you can do something of this (e.g. in the abstract class ClassFactory):

public abstract ClassAFactory getAFactory();
public abstract za.org.myDomain.subDomain.factory.ClassAFactory getFactory();

The 2nd import doesn't have to have an import declaration since you fully qualified the return type.

score 0 · Answer 3 · edited Aug 16 '11 at 15:09

0

You have to reference it by the full name, eg: com.something.something.ClassName

edited Aug 16 '11 at 15:09

Buhake Sindi

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answered Aug 16 '11 at 15:03

Josh

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score 0 · Answer 4 · answered Aug 16 '11 at 15:05

All classes with the same name reside in a seperate package (different name because they are in a different folder). This way the class becomes unambiguous.

Just be careful in which package you are at the time. in other words be aware you the name resolution technique Java uses.

Class that uses a class with the same name

4 Answers4