what is best book to learn optimized programming in java [closed]

Posted by Abhishek Simon on Programmers See other posts from Programmers or by Abhishek Simon
Published on 2012-03-23T08:25:37Z Indexed on 2012/03/29 23:40 UTC
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Possible Duplicate:
Is there a canonical book for learning Java as an experienced developer?

Let me elaborate a little:

I used to be a C/C++ programmer where I used data structure concept like trees, queues stack etc and tried to optimize as much as possible, minimum no. of loops, variables and tried to make it efficient. It's been a couple of years that I started writing java codes, but it is simply not that efficient in terms of performance, memory intensive etc.

To the point:

I want to enter programming challenges using java so I need to improve my approach at things I program. So please suggest me some books that can help me learn to program better and have a chance in solving challenges in programming.

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