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C# Object Pooling Pattern implementation
...ches, but the bottom line is that resources should be accessed in the same order that they were created, which means that we have to maintain references to them but mark them as "in use" (or not). In the worst-case scenario, only one slot is ever available, and it takes a full iteration of the buff...
What is the difference between Collection and List in Java?
...5th element in this collection" isn't defined, because there is no defined order.
There are other specialized Collections as well, for example a Set which adds the feature that it will never contain the same element twice.
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Any reason to prefer getClass() over instanceof when generating .equals()?
...equals and hashCode) then use getClass() equality instead of instanceof in order to preserve the symmetry and transitivity requirements of the equals contract.
– Shadow Man
Jul 16 '19 at 0:14
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How do I edit /etc/sudoers from a script?
I need to edit /etc/sudoers from a script to add/remove stuff from white lists.
12 Answers
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Equivalent to 'app.config' for a library (DLL)
...}
You'll also have to add reference to System.Configuration namespace in order to have the ConfigurationManager class available.
When building the project, in addition to the DLL you'll have DllName.dll.config file as well, that's the file you have to publish with the DLL itself.
The above is ba...
What does java.lang.Thread.interrupt() do?
...ava is not pre-emptive. Put another way both threads have to cooperate in order to process the interrupt properly. If the target thread does not poll the interrupted status the interrupt is effectively ignored.
Polling occurs via the Thread.interrupted() method which returns the current thread's ...
When is it better to use an NSSet over an NSArray?
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When the order of the items in the collection is not important, sets offer better performance for finding items in the collection.
The reason is that a set uses hash values to find items (like a dictionary) while an array has to iter...
防挂马：apache禁止访问文件或目录执行权限、禁止运行脚本PHP文件的设置方...
...,配置如下:代码如下:<Directory " var www upload"><FilesMatch " PHP">Order Allow,DenyDe 我们来看俩段通常对上传目录设置无权限的列子,配置如下:
代码如下:
<Directory "/var/www/upload">
<FilesMatch ".PHP">
Order Allow,Deny
Deny from all
</FilesMatch>
...
Does a javascript if statement with multiple conditions test all of them?
...ime, and not only is it important to know this short circuits, but in what order. For example:
if (takesSeconds() && takesMinutes())
is much better than
if (takesMinutes() && takesSeconds())
if both are equally likely to return false.
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Functional, Declarative, and Imperative Programming [closed]
...eclarative languages don't express control-flow other than nested function order (a.k.a logical dependencies), because due to immutability, other choices of evaluation order do not change the result (see below).
Declarative languages express logical "steps" (i.e. the nested RT function call order)...