[R] Using Java methods in R

[hill0093]

No answer to my post, 
so let's try a simpler question. Am I doing this correctly?
I have the RGui with R Console on the screen.
On rhe top pullDowns, Packages > Install Packages > USA(IA)> rJava 
> library(rJava)
> .jinit()
> qsLin <- .jnew("C:/ad/j/CalqsLin")
Error in .jnew("C:/ad/j/CalqsLin") : 
  java.lang.NoClassDefFoundError: C:/ad/j/CalqsLin

So I got this error which means I don't understand very much.
I go to C:/ad/j and get
C:\ad\j>dir CalqsLin.class
 Volume in drive C has no label.
 Volume Serial Number is 9A35-67A2
 Directory of C:\ad\j
04/23/2011  07:11 AM            14,651 CalqsLin.class
               1 File(s)         14,651 bytes
               0 Dir(s)  104,257,716,224 bytes free

Just to show my intentions, 
I had next wanted to call this java function method:
linTimOfCalqsStgIsLev("201104052359599999",-4) using:
> dblTim <-
> .jcall(qsLin,"D","linTimOfCalqsStgIsLev","201104052359599999","-4")
but that will probably also be wrong?
Obviously I don't understand.


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