Java Help - Classpath definition (Oh, bother...)

Author

Classpath definition (Oh, bother...)

Aki \Sus\ Laukkanen

2004-09-22, 9:10 am

Hi all,

I'm still a bit stuck with defining classpath for multiple-class
applications.
I'm trying to get an application with multiple classes to compile and
run under Windows. (NT 4)
I have the files (each containing 1 class of the same name as the file,
i.e. DesimaaliAika.java contains the class DesimaaliAika and so on)

DesimaaliAika.java, IkaRivi.java, MitsuRivi.java, YhdistelmaRivi.java
and YhdistaRivit.java

Where YhdistaRivit is the main class (dependent on IkaRivi, MitsuRivi
and YhdistelmaRivi, which all depend on DesimaaliAika)

in directory D:\Aki_java\yhdistarivitparam\
and the jdk in D:\Aki_java\jdk1.4\

However, (typed at the DOS prompt) "D:\Aki_java\jdk1.4\javac -classpath
D:Aki_java\yhdistarivitparam
D:\Aki_java\yhdistarivitparam\YhdistaRiv
it.java"
just results in the compiler giving "cannot resolve symbol" error msg
for every reference to classes outside the main-class.

(For example, "
yhdistarivitparam\YhdistaRivit.java:62:cannot resolve symbol
symbol: class IkaRivi
location: class yhdistarivitparam.YhdistaRivit
IkaRivi Ika = new IkaRivi(ikaPuskuri);
^ ^
")

What am I doing wrong here?

--
-Aki "Sus" Laukkanen

Andrew Thompson

2004-09-22, 9:10 am

On Wed, 22 Sep 2004 11:23:53 +0300, Aki "Sus" Laukkanen wrote:

> What am I doing wrong here?

I found your explanation a bit confusing (all those
class names mean nothing to me, so they were all just
swimming around in my head), but it occured to me that
the package name was not referred to.

Are these classes in a package?

--
Andrew Thompson
http://www.PhySci.org/codes/ Web & IT Help
http://www.PhySci.org/ Open-source software suite
http://www.1point1C.org/ Science & Technology
http://www.lensescapes.com/ Images that escape the mundane

Aki \Sus\ Laukkanen

2004-09-22, 9:10 am

Andrew Thompson wrote:

> On Wed, 22 Sep 2004 11:23:53 +0300, Aki "Sus" Laukkanen wrote:
>
>
>
>
> I found your explanation a bit confusing (all those
> class names mean nothing to me, so they were all just
> swimming around in my head), but it occured to me that
> the package name was not referred to.

Sorry about those confusing names... They're in Finnish ;)

> Are these classes in a package?

Yes, they all belong to package yhdistarivitparam.

So how do I refer to the package?

--
-Aki "Sus" Laukkanen

Stefan Schulz

2004-09-22, 9:10 am

On Wed, 22 Sep 2004 11:51:29 +0300, Aki "Sus" Laukkanen
<aki.laukkanenREMOVETHIS@helsinki.fi> wrote:

> Andrew Thompson wrote:
>
>
> Sorry about those confusing names... They're in Finnish ;)
>
>
> Yes, they all belong to package yhdistarivitparam.
>
> So how do I refer to the package?

You should set you Classpath to the _root_ of your package tree. That
means, the directory that contains
the first package. In your case that would be D:\Aki_java.

See you
Stefan

--
Using Opera's revolutionary e-mail client: http://www.opera.com/m2/

Aki \Sus\ Laukkanen

2004-09-22, 9:10 am

Stefan Schulz wrote:

> You should set you Classpath to the _root_ of your package tree. That
> means, the directory that contains
> the first package. In your case that would be D:\Aki_java.

Ah. *slaps forehead* So _that_'s what I was doing wrong, setting the
classpath inside the package directory instead of the dir. _containing_
the package dir.
Thanks a lot for clearing that out.
_Now_ I've finally understood how to compile from command line instead
of using JBuilder's compile features... Which is a bit slower and, well,
incompetent. :o)

--
-Aki "Sus" Laukkanen

Sponsored Links