Jdoku is a sudoku solver made in java. It implements the Java swing API. The sudoku solver applies two logics for now. Try it.
Myself (Manohar Kuse) and my friend Bhaskar Bandhopadhayay worked on this project during 2009.
Download Links :
http://sourceforge.net/projects/jdoku/
Screenshots :
Manohar Kuse's Cyber 