Files in jar

I was wondering if I have a jar file of data files, would I be able to access these files from my program and if so how would I specify the path?
TIA

Thanks guys I'm able to get the file now.
I was wondering if I could access the file with the path
c:\javadev\cs-dev\data.jar\attribute_mips_complexes.tab
directly like that...when I print out the path it shows:
jar:file:/C:/javadev/cytoscape-dev-2.1/data.jar!/attribute_mips_complexes.tab
when I try :
if (temp.isFile())
    System.out.println("Valid file");
else
{     System.out.println("Invalid file name: " + name);
   return;
}it seems to be invalid.
I've tried setting fileName to different variations of
jar:file:/C:/javadev/cytoscape-dev-2.1/data.jar!/attribute_mips_complexes.tab
Thx

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