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Spring: @Component versus @Bean
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use '@component' for service based classes, '@Bean' as factory more tailor made objects, e.g jdbc datasource
– Junchen Liu
Jan 7 '16 at 17:35
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What is the bit size of long on 64-bit Windows?
...abandoned in favour of LP64 (that is, almost all later entrants used LP64, based on the recommendations of the Aspen group; only systems with a long heritage of 64-bit operation use a different scheme). All modern 64-bit Unix systems use LP64. MacOS X and Linux are both modern 64-bit systems.
Micr...
Is volatile expensive?
...zed block. Entering a synchronized block requires an atomic compareAndSet based write to take out the lock and a volatile write to release it. If the lock is contented then control has to pass from user space to kernel space to arbitrate the lock (this is the expensive bit). Accessing a volatile ...
Is there a way to zoom the Visual Studio text editor with a keyboard shortcut?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to concatenate strings with padding in sqlite
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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advantage of tap method in ruby
...ted out what I'm about say here. There is difference in what gets returned based on the examples above. The 1st example which uses .tap will return the user after the last method is run. In the second example the result of user.blahblahyougetmypoint will be returned as it's the last thing being exec...
How do I get a human-readable file size in bytes abbreviation using .NET?
...ace for readability.
Basically Determine the number of decimal places in Base 1024 and then divide by 1024^decimalplaces.
And some samples of use and output:
Console.WriteLine(BytesToString(9223372036854775807)); //Results in 8EB
Console.WriteLine(BytesToString(0)); //Results...
How do you determine which backend is being used by matplotlib?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What are the lesser known but useful data structures?
...tty neat.
Wikipedia
A skip list is a probabilistic data structure, based on multiple parallel, sorted linked lists, with efficiency comparable to a binary search tree (order log n average time for most operations).
They can be used as an alternative to balanced trees (using probalistic bal...
How to execute a Python script from the Django shell?
...command you want to execute from ./manage.py)
from django.core.management.base import BaseCommand
class Command(BaseCommand):
def handle(self, **options):
# now do the things that you want with your models here
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