i've 2 doubts in my project

1. i've included a few jar files to my project in eclipse. i need help abt how to use them in my code..

2. i've a bat file with code,
<code>java -cp gnu-regexp-1.0.8.jar;xerces.jar;xml4j.jar;rdf-api-2000-11-22.jar;rdf-crawl-2000-11-27.jar edu.unika.aifb.rdf.crawler.CrawlConsole Jena Semantic Web Framework 2 60</code>
here the url, and other 2 integers has to be changed everytime. i need to execute the same in java wid varying inputs.

plz help..
thanks