error

I downloaded new sdk 1.4.before i used to run my programs like this. java -cp c:\sun\appserver\pointbase\lib\pbclient.jar; classnamenow, i am getting class not found error. what is the problem?
[221 byte] By [shakmoha] at [2007-10-2 13:36:57]
# 1
Java is looking for a class in this jar:c:\sun\appserver\pointbase\lib\pbclient.jarand can't find it.
ChuckBinga at 2007-7-13 11:26:32 > top of Java-index,Archived Forums,Java 2 Software Development Kit (J2SE SDK)...
# 2
I think you should uninstall your jdk ...then install again...and you can go start->run->cmdthen type java...javac...if you can read some information of java....it is ok...
hbomb@163.coma at 2007-7-13 11:26:32 > top of Java-index,Archived Forums,Java 2 Software Development Kit (J2SE SDK)...