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Why does Double.NaN==Double.NaN return false?
...cluding NaN. This is part of the IEEE 754 standard and implemented by the CPU/FPU. It is not something the JVM has to add any logic to support.
http://en.wikipedia.org/wiki/NaN
A comparison with a NaN always returns an unordered result even when comparing with itself. ... The equality and ine...
Why can't strings be mutable in Java and .NET?
...en somehow you manage to change the
file name you can request to open
"passwd" file or any other. Then a
file can be modified and it will be
possible to login directly to OS.
Second - Memory efficiency http://hikrish.blogspot.com/2006/07/why-string-class-is-immutable.html
JVM internall...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...ow supports numpy. Some extensions are still not supported (Pandas, SciPy, etc.), take a look at the list of supported packages before making the change.
Python 3 support is experimental at the moment. has just reached stable! As of 20th June 2014, PyPy3 2.3.1 - Fulcrum is out!
PyPy sometimes isn't ...
What is difference between monolithic and micro kernel?
...t and some popular Linux distros have a Hurd port (Debian/Hurd, Arch Hurd, etc).
– beatgammit
Feb 2 '13 at 3:18
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Bill Gross超火爆演讲: 创业成功唯一最关键因素 - 资讯 - 清泛网 - 专注C/C++及内核技术
...业组织这么伟大，为什么他们中绝大部分都会失败？这个问题，是我想知道的，我希望找出真正能影响它们成功的关键性因素，而且，我想尝试用一种系统化的方式研究，以避免我一些直觉性的东西，以及因为过去经历我曾操盘...
Naming conventions: “State” versus “Status” [closed]
...t dirty (therefore requiring saving), is it complete, is it pending input, etc
I hope that helps you in your decision.
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Why doesn't JavaScript support multithreading?
...All Chrome does is separate multiple components (different tabs, plug-ins, etcetera) into separate processes, but I can’t imagine a single page having more than one JavaScript thread.
You can however use, as was suggested, setTimeout to allow some sort of scheduling and “fake” concurrency. Th...
Alarm 闹钟扩展 · App Inventor 2 中文网
... Android 10和小米设备的额外权限）。示例中展示了解决此问题的可能方案。
为了启动新活动，`AlarmIntent` 中的 `FlagNewTask` 属性必须设置为 true！
小米设备制造商用户注意：
在闹钟时间，扩展的一个类在后台启动。对于小米设备...
What are the differences between a UIView and a CALayer?
...CALayer, which inherit from NSObject, mainly focus on rendering, animation etc.
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Python 3.x rounding behavior
...context for the Decimal module that does this for you implicitly. See the setcontext() function.
– kindall
May 31 '12 at 21:04
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