Joined: 06 Jun 2008 Posts: 8231 Location: Dubuque, Iowa, USA
You posted in the JCL section of this forum. JCL does only one thing -- it executes programs. The programs might be COBOL, PL/I, assembler, C, Perl, or a system utiltiy such as IDCAMS, SORT, or IEBGENER, but all JCL can do is execute programs.
As Dick said, you need to explain more. Which language are you implementing the mod 10 algorithm in? Which digit are you looking for -- the checksum? the first digit? the ninth digit? Are you looking for an existing implementation of mod 10, or are you planning on writing one?