Newbie needs help installing Jakarta Commons tools

[MikeHaith]

I am very new to Java and I am eagerly trying to learn. I have a java web application that requires some of the Jakarta Commons tools to be installed so that I do not have to reinvent the wheel. I have downloaded the .jar files that I need, but I have no idea how to include them in my project. My environment is set up using:

JBoss 4.0.3 SP1
Eclipse 3.1.1
Java 2 Runtime 1.4.2_10
Java 2 SDK 1.4.2_10

When I try to execute the jar file I donwloaded using the command:

java -jar xyz.jar

I get the error:

Failed to load Main-Class manifest attribute from xyz.jar.

I dont know if I am supposed to be execute this jar file or copying it to a directory within JBoss?

Any help with this to point me in the right direction would be appreciated.

Mike

 

[MikeHaith]

I figured it out!

For anyone else who may need to know how to add jar files to a java project if you are using eclipse:

Open eclipse
go to Project --> Properties --> Java Build Path
Select the Libraries tab
Add External JARs
Find your jar file and select it.

You will now be able to use the tools you downloaded.

Mike

 

[timw]

Well done Mike. Kudos to you for figuring this out yourself.

Tim