Re: Java JAR files

From:
Teber <tozceyhan@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 22 Feb 2008 06:17:42 -0800 (PST)
Message-ID:
<7e684669-55fa-4263-9b3f-f08d617f7794@71g2000hse.googlegroups.com>
On 21 =AAubat, 17:24, Lew <l...@lewscanon.com> wrote:

Teber wrote:

I've a Java library file which is called Klavye.jar. I write a
program which uses this library. This library is in
com.boragungoren.java package. the program looks like this:


Having "java" inside package names is a bad idea. Isn't the whole program=

written in Java?

It's also illegal to have 'java' or 'javax' be top-level package names, bu=

t

that doesn't apply here.

import com.boragungoren.java.Klavye;


Do you have a class called 'Klavye' inside the JAR, in that package?

What package is 'Main' in? It needs to be in a package.

public class Main {

   public static void main(String[] args) {

       int k;
       long l;
       System.out.println("Two number please:");
       k=Klavye.intOku();
       l=Klavye.longOku();

   }

}

the Klavye.jar is in C:\Program Files\Java\jdk1.6.0_03\jre\lib
CLASSPATH is C:\Program Files\Java\jdk1.6.0_03\jre\lib


That classpath will not pull in the JAR - you need to explicitly include J=

ARs

in the classpath, or use the wildcard form.

The CLASSPATH envar is not the best way to set a classpath. Use the
-classpath or -cp options to the command instead.

when compile it says

Main.java:2: package com.boragungoren.java does not exist
import com.boragungoren.java.Klavye;
                           ^
what shall i do
what is wrong with this


You did not include the JAR in your classpath.

rossum wrote:

In Java your package name must match the location of the files for
that package. Your Klavye.jar needs to be in
###/com/boragungoren/java/, which is where the compiler will be


Not even close to correct. The class file needs to be in the correct pack=

age

directory *inside the JAR*, not the JAR inside the directory.

looking for it. The error message is telling you that it cannot find
anything at ###/com/boragungoren/java. "###" will vary depending on
where in your directory tree you keep your java programs.


Don't put application JARs in the Java installation directories.
$JDK_HOME/jre/lib is for the JRE, not for application code.

Put the JAR in the class path, not in the package directory.

Read
<http://java.sun.com/javase/6/docs/technotes/tools/findingclasses.html>

--
Lew


Thanks for help this was too helpfull first i will reorganize the JAR
its nor mine but it's not inth form \com\xxxx\yyyy i thing that was
the problem...

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