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Why “no projects found to import”?
I am trying to "import existing project into workspace". As the "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why?
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Best practice to run Linux service as a different user
Services default to starting as root at boot time on my RHEL box. If I recall correctly, the same is true for other Linux distros which use the init scripts in /etc/init.d .
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The performance impact of using instanceof in Java
...all efficiencies, say about 97% of the time: premature optimization is the root of all evil." The performance of instanceof probably won't be an issue, so don't waste your time coming up with exotic workarounds until you're sure that's the problem.
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Peak detection in a 2D array
...een studied in some depth by physicists. There is a good implementation in ROOT. Look at the TSpectrum classes (especially TSpectrum2 for your case) and the documentation for them.
References:
M.Morhac et al.: Background elimination methods for multidimensional coincidence gamma-ray spectra. Nucl...
How to remove “index.php” in codeigniter's path
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If you are using Apache place a .htaccess file in your root web directory containing the following:
RewriteEngine on
RewriteCond $1 !^(index\.php|[Javascript / CSS / Image root Folder name(s)]|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]
Another good version is located he...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...PELINE的十倍。
查询
我们用Redis命令行来演示一下用户是如何查询消息的。
先插入三条消息，其<MSGID>分别是1，2，3：
redis> HMSET msg:1 title title1 content content1
redis> HMSET msg:2 title title2 content content2
redis> HMSET msg:3 title title3 content ...
What is PostgreSQL explain telling me exactly?
MySQL's explain output is pretty straightforward. PostgreSQL's is a little more complicated. I haven't been able to find a good resource that explains it either.
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How to solve the error LNK2019: unresolved external symbol - function?
...b', although location of both 'MyProject' and 'MyTestProject' kept in same root folder.
– Pabitra Dash
Aug 24 '18 at 10:58
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Best way to add “current” class to nav in Rails 3
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link_to link_text, link_path
end
end
used like:
nav_link 'Home', root_path
which will produce HTML like
<li class="current"><a href="/">Home</a></li>
share
|
im...
Forward host port to docker container
...but it does let container processes open low-numbered ports like any other root process. It also allows the container to access local network services like D-bus. This can lead to processes in the container being able to do unexpected things like restart your computer. You should use this option wit...