Tech Notes » java http://www.ryannitz.org/tech-notes Miscellaneous technology examples and notes Sun, 03 Apr 2011 16:48:09 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 http://www.ryannitz.org/tech-notes http://ryan-nitz/favicon.ico Tech Notes Java – Not A Number Gotcha http://www.ryannitz.org/tech-notes/2009/01/25/java-not-a-number-gotcha/ http://www.ryannitz.org/tech-notes/2009/01/25/java-not-a-number-gotcha/#comments Sun, 25 Jan 2009 16:06:38 +0000 Ryan http://leisuremech.com/?p=122 java

There are always subtle nuances to every computer language. Recently, I found the following NaN (not a number) nuance in Java:

Bad:

if (value == Double.NaN)
    // Do something...

Good:

if (Double.isNaN(value))

    // Do something....
]]> http://www.ryannitz.org/tech-notes/2009/01/25/java-not-a-number-gotcha/feed/ 2 BDB JE – Locks, Blocks and Deadlocks http://www.ryannitz.org/tech-notes/2008/12/13/bdb-je-locks-blocks-and-deadlocks/ http://www.ryannitz.org/tech-notes/2008/12/13/bdb-je-locks-blocks-and-deadlocks/#comments Sat, 13 Dec 2008 14:53:18 +0000 Ryan http://leisuremech.com/?p=79

Below is a handy reference link about BDB JE (Berkeley Database Java Edition) locks, blocks and transactions:

After running some tests, we were amazed by the performance of the concurrent locking mechanism in BDB JE.

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