title: Packages and Exporting Jar files with Referenced Libraries Error
body: <p>I have a program with multiple packages in my current Java Project. </p>
  
  <p>I have also referenced some jars such as the Java Commons Library. </p>
  
  <p>I am planning on releasing my program as a runnable jar files to the public, however when I was testing today, when I exported it and tried to run it. The files within the packages could not import that Java Commons Library. I know that changing classpath may fix this, but I have  A TON of .java files and don't wish to write them 1 by 1. Also I do not know if the classpath changing technique will allow the compiled jar to work on ANYONE'S computer. </p>
  
  <p>Is there a simpler / faster way to do it? Or is using the Change Classpath with console the only way? </p>
  
  <p>(I am using Eclipse)</p>
  
  <p>Thanks for any help!</p>