Third for [java] and second for [concurrency]

First to get the silver [jvm] badge, second to gold [performance] badge.

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awarded bit-manipulation
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awarded java-7
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revised Creating dynamic threadpool based on server resources
added 1 character in body; added 89 characters in body
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answered Creating dynamic threadpool based on server resources
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comment Write files using mutiples thread
@danillonc I think I have an answer for you which would allow you to see if multi-threading your disk access will help with a minimum of changes to your code.
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revised Write files using mutiples thread
added 3834 characters in body
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comment Write files using mutiples thread
@danillonc in which case, you probably need a faster drive (or may be not, I am just guessing you have HDD) Can you check what your disk sub-system is?
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answered Why does casting to a generic subtype produce a warning?
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comment Alternative to implementing an interface with an anonymous class
@tobias_k exactly one method without a default or static implementation.
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comment How to add two number so that every time sum greater than 0.5 counts as 1?
@Nawa so ... what is stopping you using integer?
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comment ZeroMQ (0MQ), how to connect the client to a remote server?
Can you telnet ipaddress 5555 to see if you can connect to it?
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comment Try and Catch Explanation?
What do you think a method called print stack trace might do assuming you don't have access to the Javadocs or the internet?
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comment Why does -1 << 23 and -1 << 55 return the same value in Java?
Compare it with -1L << 55 and -1L >>> -1 for interest.
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comment Write files using mutiples thread
@danillonc could you write a zip of the files you need? Without reducing the number of files actually written, there isn't much point in changing it.
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answered JAVA - Object cannot be added to Object Array - NullPointerException
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comment Java - for loop: distribution
Instead of using child - 1 start at child = 0 and use /64 instead of /65
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awarded Altruist
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comment How to add two number so that every time sum greater than 0.5 counts as 1?
@Nawa what is stopping you from using whole numbers? Is this homework?
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comment Write files using mutiples thread
@danillonc So I assuming you can't upgrade the drive either ;)
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comment Is it faster or wiser to map data Into memory and iterate, or into database
It rather depends on the operations you need to perform but you can embed a persisted key-value store into the memory of your Java process and hold 70 million user records. If you only lookup by key, you won't need to iterate the entries.
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