comm implementation in Java ( comm -- select or reject lines common to two files )

Asked Jul 25 '12 at 15:32

Active Jul 25 '12 at 15:32

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I have 2 huge files. One of them contains original DB with transactions line by line sorted alphabetically, the second one contains an incremental DB also with transactions sorted alphabetically. What I need is to get all of the common transactions in both files. Is there a fast and optimized way of doing this in Java? Thanks.

asked Jul 25 '12 at 15:32

Ahmadov

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How big are the files? (Will one of them load into memory?) – Nicholas Jul 26 '12 at 10:43
the files are not that big and can be fit into the memory – Ahmadov Aug 06 '12 at 04:45

comm implementation in Java ( comm -- select or reject lines common to two files )

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