Folks: Let’s say I have a java source file that imports a class as follows: import ab.cd.ef; public class{ ... } Of course, I need that jar file in the classpath in order to be compiled. What if I don't know what jar file includes ab.cd.ef class? I know there is a way -- on my local PC, I can search *.jar that includes text "ab.cd.ef". If I am lucky I can find that jar file. But sometimes, I don't have such a jar file on my computer. Then I need to download it from internet, so now the problem is how to find that specific jar file so that I can download it? Can anybody throw some thought to enlighten me? Thanks a lot!

You'd probably have to search for it... just use google.