There is a Java Void -- uppercase V-- reference type. The only situation I have ever seen it used is to parameterize Callables final Callable<Void> callable = new Callable<Void>() { public Void call() { foobar(); return null; } }; Are there any other uses for the Java Void reference type? Can it ever be assigned anything other than null? If yes, do you have examples?
I'm trying to amass a list of programming books with opensource licenses, like Creative Commons, GPL, etc. The books can be about a particular programming language or about computers in general. Hoping you guys could help: Languages Python Dive Into Python How to Think Like a Computer Scientist A Byte of Python Python for Fun Ruby Why's (Poignant) Guide to Ruby PHP Practical PHP Programming Perl E
Can I used cassandra on EC2 instances without Elastic IP addresses? I believe in that case any instance that goes down, would create an issue. If I use Elastic IP addresses for the cassandra nodes, I have to configure them such that they use the Public IP address for internal communication (gossip etc.). But that will increase the network latency. Please suggest how should I configure my nodes suc
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