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What is a Java ClassLoader?
...get a feeling of this recursive class loading as well as the class loading idea in general, consider the following simple class:
public class HelloApp {
public static void main(String argv[]) {
System.out.println("Aloha! Hello and Bye");
}
}
If you run this class specifying the -verbo...
How to count the number of occurrences of an element in a List
...elow - the correct answer is to use a structure that supports the counting idea from the begining rather than counting entries from start to end each time a query is made.
– mP.
Feb 3 '09 at 3:38
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What is the preferred syntax for defining enums in JavaScript?
...@Johanisma: That use case does not realy make sense for enums as the whole idea of them is that you know all values in advance. However there is nothing stopping you from adding extra values later in Javascript. I will add an example of that to my answer.
– Stijn de Witt
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Why use make over a shell script?
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The general idea is that make supports (reasonably) minimal rebuilds -- i.e., you tell it what parts of your program depend on what other parts. When you update some part of the program, it only rebuilds the parts that depend on that. Wh...
Why is it bad style to `rescue Exception => e` in Ruby?
...every time the car stops, whether an exception is thrown or not, is a good idea. Even though inflating airbags is a bit of an uncommon task in most programming contexts, this is actually pretty common with most cleanup tasks.
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Is it ok to use dashes in Python files when trying to import them?
...r: No module named 'psycopg2-binary'. But psycopg2-binary is installed. No idea how to include it.
– Mote Zart
Sep 30 '19 at 23:35
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SCOPE_IDENTITY() for GUIDs?
...oblem are there in GUID . read this one tooNEWSEQUENTIALID() .These are my ideas ,think before use GUID as primary Key . :)
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Will HTML5 allow web apps to make peer-to-peer HTTP connections?
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The Whole idea of Web Sockets was to solve the problems with Firewalls and proxies http://www.kaazing.org/confluence/display/KAAZING/What+is+an+HTML+5+WebSocket
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Python JSON serialize a Decimal object
...noticed that it won't actually work like this. Will edit accordingly. (The idea stays the same, though.)
– Michał Marczyk
Dec 25 '09 at 7:06
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Storing time-series data, relational or non?
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Create a file, name it 1_2.data. weired idea? what you get:
You save up to 50% of space because you don't need to repeat the fk_to_device and fk_to_metric value for every data point.
You save up even more space because you don't need any indices.
Save pairs of (t...