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How to run a background task in a servlet based web application?
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You can use cron4j. http://www.sauronsoftware.it/projects/cron4j/manual.php
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...一个Key Value的数据结构，它很像Javascript中的Object，或是PHP中的数组，在别的语言里叫Dict或Map，Table长成这个样子：haoel = {name="ChenHao", age=37, handsome=True}复制代码
下面是table的CRUD操作：haoel.website="http://coolshell.cn/"
lo...
CSS Selector “(A or B) and C”?
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At that point, I might as well just use PHP printing "Content-type: text/css"
– Josh
Sep 22 '11 at 15:53
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What is a Proxy in Doctrine 2?
...doctrine can't create the object if it only has half of the properties. In php i am able to create an object even if i don't set all properties.
– sanders
Jul 20 '11 at 11:44
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@property retain, assign, copy, nonatomic in Objective-C
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Variable property attributes or Modifiers in iOS
Here is the Sample Description from Article
atomic
-Atomic means only one thread access the variable(static type).
-Atomic is thread safe.
-but it is slow in performance
-atomic is default behavior
-Atomic accessors in a non garbage collecte...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
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Both Perl and PHP use =>. I'd guess that Ruby, being heavily inspired by Perl, borrowed the syntax from Perl :)
– Daniel Serodio
Aug 7 '17 at 19:19
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IE10 renders in IE7 mode. How to force Standards mode?
...g IIS it's easy to do in any language. For example, here's how to do it in PHP:
header('X-UA-Compatible: IE=edge');
As long as the X-UA-Compatible header is present with the HTML5 doctype, a site will always run in the latest standards mode.
Turning off Compatibility View
It may still be useful ...
How to read the Stock CPU Usage data
...T reperesent load average in %:
http://forum.xda-developers.com/showthread.php?t=1495763
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...wever, there is a simple linear-time reduction from AVERAGE to 3SUM, whose description we omit.
Wikipedia:
When the integers are in the range [−u ... u], 3SUM can be solved in time O(n + u lg u) by representing S as a bit vector and performing a convolution using FFT.
This is enough to sol...
Unable to find valid certification path to requested target - error even after cert imported
...InstallCert.Java and JDK
source: http://www.java-samples.com/showtutorial.php?tutorialid=210
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