How to install a library

Question

Hello, I have a question.
I want to install a library. I downloaded the library (http://jcommander.org/#Download) and compiled it. Now I ended up with a directory with classes and jar files.
I hear I need to move the folder to /usr/lib/jvm/java-6-openjdk-i386/jre/lib/ext ... And when I tried to compile a .java file requiring the jcommander, the compiler says the module cannot be found. .... I spend an hour to find ways to install it but, I couldn't... Could you give me a hint/answers/ideas..
Thank you!

Answer 1

I'm not familiar with the jar file you mentioned, but I suspect it should be installed in your project and not as part of the jvm (/usr/lib/jvm/java-6-openjdk-i386/jre/lib/ext).
If your project is netbeans, you add this to your pom.xm, the right click on the project icon and select 'build with dependencies'. The jar will be downloaded by maven (you don't have to manually download it), and installed in the classpath. Similarly for Eclipse.
        <dependency>
            <groupId>org.apache.cxf;/groupId>
            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
            <version>2.4.1;/version>
        </dependency> If your project is not maven, you have a folder in your project typically called 'lib' with your jar files there.
Then for netbeans, right click on the project icon and select 'properties'. The select the 'library' link, then click the 'Add Library' button, then navigate to the location of your jar files and add all them. Recompile and all should work.
For Eclipse, right click on the project icon, then properties->Java Build Path->Libraries->Add Jars