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Issue with adding Jar files

Benoy John

Joined: Feb 16, 2013
Posts: 2

I have been trying to add the 'org.apache.poi' jar files to run a program to convert excel files to csv files. I read up on some articles and downloaded '' and extracted it to C:\. I added the individual jar files to my ClassPath and tried running the program. I keep getting the error 'org.apache.poi.hssf.usermodel' does not exist. Could anyone please help me in understanding how to extract and add the jar files porperly? I am not using any IDEs and am running javac from my Windows command prompt.

Thanks in advance,
K. Tsang

Joined: Sep 13, 2007
Posts: 3062

You should the classpath flag in javac

javac -cp c:\poi.jar

Then try running it also need to specify classpath

java -cp c:\poi.jar YourClass

Then for jar creation

jar cfm YourJarName.jar YourClass.class poi.jar manifest.txt

In the manifest text specify the main class.

K. Tsang JavaRanch SCJP5 SCJD OCPJP7 OCPWCD5 OCPBCD5 OCPWSD5 OCMJEA5 part 1 part 2/3
Benoy John

Joined: Feb 16, 2013
Posts: 2
Thanks Tsang. Worked perfectly.
I agree. Here's the link:
subject: Issue with adding Jar files
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