Re: CLASSPATH Problem ????

Perhaps the jar file has become corrupted?  You could try un-jar-ing it
and try running it on the class files

Kostas Stergiou wrote:
> Suse 9 comes with jdk1.3 and jbuilder install jdk1.4.1
>
> --- Bruce Ashton <bruce@ashton.net> wrote:
>
>>What version of Java are you using?
>>
>>Kostas Stergiou wrote:
>>
>>>For the last two days i'm trying to use java on a
>>>linux box but i'm completely lost i'm afraid.
>>>What i want to do is to write an app that will
>>>communicate with a database (oracle or postgres).
>>>I use Suse 9 and postgresql to start.
>>>The database is configured without problems and i
>>
>>can
>>
>>>communicate with it using psql utility (the owner
>>
>>of
>>
>>>the postgres is another user i created also named
>>>postgres).
>>>I can communicate with the db also through C / C++
>>>with no problems.
>>>To use java i download the pg73jdbc3.jar (postgres
>>>version is 7.3.4). I copied that file in
>>
>>/usr/lib/java
>>
>>>and i tried to compile the following program
>>>
>>>import java.sql.*;
>>>
>>>class JDBCVersion
>>>{
>>>   public static void main (String args[])
>>>          throws SQLException
>>>   {
>>>    Class.forName("org.postgresql.Driver");
>>>   }
>>>
>>>The response i got was
>>>unreported exception
>>
>>java.lang.ClassNotFoundException
>>
>>>Trying to resolve that error i've found that there
>>>were no CLASSPATH variable for any user. I added
>>
>>the
>>
>>>line
>>>export
>>>
>>
>>CLASSPATH=/usr/lib/java:/usr/lib/java/pg73jdbc3.jar
>>
>>>in .bash file but that didn't help.
>>>Other vars like JAVA_HOME, JAVA_JDK was already
>>
>>set by
>>
>>>the OS.
>>>Since i'm new in java and linux i tried jbuilderX
>>
>>from
>>
>>>borland in case i could manage it better through
>>
>>IDE.
>>
>>>In jbuilder i added a library through
>>>Tools->Configure
>>
>>Libraries->New->Class->pg73jdbc3.jar
>>
>>>I also added in the class option of
>>>Tools->Configure JDK->User Home
>>>the line
>>>
>>
> /home/usr/JBuilderX/thirdparty/postgres/pg73jdbc3.jar
>
>>>and in project properties option i added the jar
>>
>>file
>>
>>>in required libraries
>>>That didn't seem to work also. The same program
>>>doesn't work in the IDE. When i'm trying to use
>>>Database Pilot the postgres driver is always
>>>displaying in red.
>>>I tried the same with oracle 9i and still nothing
>>>works.
>>>Everything seem to work ok in windows 2k
>>
>>installation.
>>
>>>What am i doing wrong in Suse? Is it a CLASSPATH
>>>problem as i believe or it might be something
>>
>>else?
>>
>>>Sorry for the size of the post, but i'm completely
>>>confused
>>>
>>>PS i tried another version of the driver
>>>(pg74.1.jdbc3.jar) with the same results
>>>
>>>TIA
>>>
>>>
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>
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