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How can I hash a password in Java?
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You may want to be a bit wary of byte to hex conversions with BigInteger: leading zeros are removed. That's ok for quick debug, but I have seen bugs in production code due to that effect.
– Thomas Pornin
May...
Node.JS constant for platform-specific new line?
...ant, but you determine it yourself using:
var nl = (process.platform === 'win32' ? '\r\n' : '\n')
(note this is quite a naive solution)
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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
...dited or generalised if you have better experience of the issue... apply a bit of that SO magic.
Note: Comments in next paragraph applied to Snow Leopard, but not to Lion, which appears to require 64-bit MySQL
First off, the author (still?) of MySQLdb says here that one of the most pernicious prob...
Python学习之Jupyter Notebook和highchart安装 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python学习之Jupyter Notebook和highchart安装运行环境Win7 64位 + Python3 5 2一、安装网页端编译器Jupyter Notebook在cmd输入pip3 install jupyter在cmd输入jupyter notebook,
运行环境
Win7 64位 + Python3.5.2
一、安装网页端编译器Jupyter Notebook
在cm...
What is the most effective way for float and double comparison?
...silon will be dependent on the exponent. For example if the mantissa is 24bits and the exponent is signed 8bit, then 1/(2^24)*2^127 or ~2^103 is an epsilon for some values; or is this referring to a minimum epsilon?
– artless noise
Mar 17 '13 at 18:54
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How do I set the default locale in the JVM?
...args
java -Duser.country=ES -Duser.language=es -Duser.variant=Traditional_WIN
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Setting a system environment variable from a Windows batch file?
...to set a environment variable at the system level from a command prompt in Windows 7 (or even XP for that matter). I am running from an elevated command prompt.
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Fastest way to determine if an integer's square root is an integer
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I figured out a method that works ~35% faster than your 6bits+Carmack+sqrt code, at least with my CPU (x86) and programming language (C/C++). Your results may vary, especially because I don't know how the Java factor will play out.
My approach is threefold:
First, filter out ob...
ExecJS::RuntimeError on Windows trying to follow rubytutorial
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My friend was attempting a Rails tutorial on Win 8 RTM a few months ago and ran into this error. Not sure if this issue exists in Windows 7 as well, but this may help.
Options:
1) Removing //= require_tree . / Ignoring the issue - As ColinR stated above, this line sho...
In Java, what is the best way to determine the size of an object?
...elements, use VMSupport.vmDetails(). On Oracle JDK 1.8.0_40 running on 64-bit Windows (used for all following examples), this method returns
Running 64-bit HotSpot VM.
Using compressed oop with 0-bit shift.
Using compressed klass with 3-bit shift.
Objects are 8 bytes aligned.
Field sizes by type: ...