tried to compile an example code to insert text data from text file to mysql db..but its nt working..it shows errorError: org.gjt.mm.mysql.Driver not found in gnu.gcj.runtime.SystemClassLoader{ur ls=[file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver not found in gnu.gcj.r untime.SystemClassLoader{urls=[file:./], parent=gnu.gcj.runtime.ExtensionClassLo ader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass(libgcj.so.70)
at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.70)
at java.lang.ClassLoader.loadClass(libgcj.so.70)
at java.lang.ClassLoader.loadClass(libgcj.so.70)
at java.lang.Class.forName(libgcj.so.70)
at java.lang.Class.forName(libgcj.so.70)
at InsertTextFileToMySQL.getConnection(InsertTextFileToMySQL.java:15)
at InsertTextFileToMySQL.main(InsertTextFileToMySQL.java:28)
Exception in thread "main" java.lang.NullPointerException
at InsertTextFileToMySQL.main(InsertTextFileToMySQL.java:42)
pls help....

First, spell out your words, and use a good subject. Saying "pls help", tells us nothing about the question.

And if you'd like help, you need to provide some actual details. Things like version/distro of Linux, what you're trying to compile from where, etc. All you've told us is you're trying to compile an example piece of code, that you got somewhere.

Look where you got the code, chances are it has a bit of documentation, that will give you basic troubleshooting/setup steps.

Welcome to LQ. .. .. ..

First thing to do : Get a genuine sun java.
Debian : 1) su , 2) apt-get install sun-java6-jdk
3) update-alternatives --config java
.. And then please choose the "sun version"
4) exit , 5) java -version ( to check, that it works.)
.....