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Get login username in java
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This code goes against Java's philosophy of write once, run anywhere (introduction of OS specific code), and secondly, it creates a dependency on Sun's implementation of Java.
– Jin Kim
May 19 '09 at 16:28
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...O and not multiple threads (so reducing thread switching).
Let's look at possible implementations of a network server program that shall handle 1000 clients connected in parallel:
One thread per connection (can be blocking I/O, but can also be non-blocking I/O).
Each thread requires memory resour...
Python glob multiple filetypes
...ver match patterns and keep the join inside the loop for simplicity:
from os.path import join
from glob import glob
files = []
for ext in ('*.gif', '*.png', '*.jpg'):
files.extend(glob(join("path/to/dir", ext)))
print(files)
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新闻传播中如何让沉默的数据说话 - 资讯 - 清泛网 - 专注C/C++及内核技术
...预示着某种事件的发生或变动趋势。
两个显著的例子，一个是谷歌研究人员对于某一地区流行性感冒发生前的预警研究；一个是国内外多家机构都已经开始尝试的旅游热点地区人流量集中度的预警和控制。这两种数据研究方法...
Is .NET/Mono or Java the better choice for cross-platform development? [closed]
...e portable. Mono isn't implemented everywhere, and it lags behind the Microsoft implementation significantly. The Java SDK seems to stay in better sync across platforms (and it works on more platforms).
I'd also say Java has more tool availability across all those platforms, although there are ...
How to check status of PostgreSQL server Mac OS X
How can I tell if my Postgresql server is running or not?
6 Answers
6
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How to grep and replace
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On OS X 10.10 Terminal, a proper extension string to parameter -i is required. For example, find /path/to/files -type f -exec sed -i "" "s/oldstring/new string/g" {} \; Anyway, providing empty string still creates a backup file ...
When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
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A quick summary of what Microsoft's compilers use for various bits of unowned/uninitialized memory when compiled for debug mode (support may vary by compiler version):
Value Name Description
------ -------- --------------------...
软件测试中的性能测试、负载测试、压力测试 - 更多技术 - 清泛网 - 专注C/C...
...。
不同的性能的度量方法取决于不同的被测对象。对于一个单独软件组件，其性能可以根据CPU主频来判定。而带客户端的系统，其性能则要根据系统处理特定用户请求的响应时间来判定。对于那些由多种组件(如客户端、服务器...
Recursive search and replace in text files on Mac and Linux
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OS X uses a mix of BSD and GNU tools, so best always check the documentation (although I had it that less didn't even conform to the OS X manpage):
https://web.archive.org/web/20170808213955/https://developer.apple.com/lega...