# Data Structures and Algorithms With Object-Oriented Design Patterns in Java
This book is about the fundamentals of data structures and algorithms--the basic elements from which large and complex software artifacts are built. To develop a solid understanding of a data structure requires three things: First, you must learn how the information is arranged in the memory of the computer. Second, you must become familiar with the algorithms for manipulating the information contained in the data structure. And third, you must understand the performance characteristics of the data structure so that when called upon to select a suitable data structure for a particular application, you are able to make an appropriate decision.
http://www.bestebooksworld.com/ebook/1186

Yeah, It's a good book. I've been reading it for some time now. Although I no longer code in java, the ideas can be applied in any object oriented language. I primarily use c# and vb.net now but the book has really helped me improve my coding techniques. Am thinking of creating a small embedded database engine based on the things I learned from the book.

Honestly it's a most read if you really want to be a software engineer and not just a coder.