(Java and patterns are a very important book for developers, and it is useless to say more. Check it out for yourself, it's very helpful for programming right and wrong.
Java and Patterns\chp12.pdf
Java and Patterns\chp13.pdf
Java and Patterns\chp14.pdf
Java and Patterns\chp15.pdf
Java and Patterns\chp16.pdf
Java and Patterns\chp17.pdf
Java and Patterns\chp18.pdf
Java with Patterns\mulu.pdf
Java with patterns\src.zip)