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When to use LinkedList over ArrayList in Java?
...lists take up for N null references.
Since references are either 32 or 64 bits (even when null) on their relative systems, I have included 4 sets of data for 32 and 64 bit LinkedLists and ArrayLists.
Note: The sizes shown for the ArrayList lines are for trimmed lists - In practice, the capacity of...
Can you change what a symlink points to after it is created?
... the link is being removed or renamed in a directory that has the sticky
bit set (see stat(2)).
The last access and last modification timestamps of a symbolic link can be
changed using utimensat(2) or lutimes(3).
On Linux, the permissions of a symbolic link are not used in any oper...
Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
....02-0612,
Network: eth0 (bnx2):Broadcom NetXtreme II BCM5709 Gigabit Ethernet,1000Mb/s
OS: RHEL Server 5.4 (Tikanga), Linux 2.6.18-164.el5 x86_64, 64-bit
服务端程序很简单，基于nginx写的一个comet模块，该模块接受用户的请求，然后保持用户...
What is meant by “managed” vs “unmanaged” resources in .NET?
... the control of the garbage-collector, since the GC will have no way of knowing that the subscription should be scrapped if the subscriber is abandoned but the publisher is not. If an unbounded number of subscribers could be created and abandoned during the life of the publisher, that would cause a ...
Echo a blank (empty) line to the console from a Windows batch file [duplicate]
When outputting status messages to the console from a Windows batch file, I want to output blank lines to break up the output. How do I do this?
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Mail multipart/alternative vs multipart/mixed
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answered Oct 21 '10 at 4:23
Mike GreenMike Green
1,93122 gold badges1717 silver badges1616 bronze badges
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How can I get the current user directory?
...y be this will be a good solution: taking in account whether this is Vista/Win7 or XP and without using environment variables:
string path = Directory.GetParent(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)).FullName;
if ( Environment.OSVersion.Version.Major >= 6 ) {
p...
Good ways to manage a changelog using git?
...ing like "Merged branch feature-foobar", you can shorten things by only showing that message, and not all the little commits that you merged, which together form the feature:
git log --pretty=%s --first-parent # only follow first parent of merges
You might be able to augment this with a script o...
将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
将Linux代码移植到Windows的简单方法一．前言 Linux拥有丰富各种源代码资源,但是大部分代码在Windows平台情况是无法正常编译的。Windows平台根本无法直接利用这些源代码资源...一．前言
Linux拥有丰富各种源代码资源,但是大部...
Copy Notepad++ text with formatting?
...
It is worth mentioning that 64-bit Notepad++ does not support Plugin Manager and NPPExport, so they won't be shown in Plugins menu. If you will try to add NPPExport plugin manually, most likely you'll see :
"NPPExport plugin is not supported with 64bit...