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what is the difference between a portlet and a servlet?
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edited Jun 12 '12 at 4:58
answered Sep 26 '09 at 6:13
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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Synchronously waiting for an async operation, and why does Wait() freeze the program here
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What is the difference between “int” and “uint” / “long” and “ulong”?
I know about int and long (32-bit and 64-bit numbers), but what are uint and ulong ?
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How to get device make and model on iOS?
...ing if it's possible to detect/know if I have an iPhone 3GS vs. and iPhone 4 vs. an iPhone 4S (in actuality, all I really want to do is determine if I have a 3G or not, because I'm doing fairly graphics intensive stuff) .
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MySQL 'create schema' and 'create database' - Is there any difference
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The documentation of MySQL says :
CREATE DATABASE creates a database
with the given name...
Argparse optional positional arguments?
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answered Dec 18 '10 at 21:15
Vinay SajipVinay Sajip
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Are static class instances unique to a request or a server in ASP.NET?
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Your static classes and static instance fields are shared between all requests to the applicati...
What does “atomic” mean in programming?
...of type long. The following operation is not an atomic operation:
foo = 65465498L;
Indeed, the variable is written using two separate operations: one that writes the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read the value of foo, and see ...