This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
The moose likes Beginning Java and the fly likes Issue with adding Jar files Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "Issue with adding Jar files" Watch "Issue with adding Jar files" New topic

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: 2247

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.

Benoy John

Joined: Feb 16, 2013
Posts: 2
Thanks Tsang. Worked perfectly.
jQuery in Action, 2nd edition
subject: Issue with adding Jar files
Similar Threads
Problem with the use of external library from a jar archive
JAR file runs when double-clicked, but not via Task Scheduler?
Help resolving my NoClassDefFoundError
Works through Jdeveloper not through Console
Adding external JARs