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What is the native keyword in Java for?
...d-essential openjdk-7-jdk
export JAVA_HOME='/usr/lib/jvm/java-7-openjdk-amd64'
javac Main.java
javah -jni Main
gcc -shared -fpic -o libMain.so -I${JAVA_HOME}/include \
-I${JAVA_HOME}/include/linux Main.c
java -Djava.library.path=. Main
Output:
4
Tested on Ubuntu 14.04 AMD64. Also worked with ...
Get DOS path instead of Windows path
...e the short name of the current folder is returned).
Tested on Windows 7 x64.
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...脚本实在太啰嗦，你只是想做一些备份文件、安装软件、下载数据之类的事情，学着使用sh，bash会是一个好主意。
shell只定义了一个非常简单的编程语言，所以，如果你的脚本程序复杂度较高，或者要操作的数据结构比较复杂...
Converting Stream to String and back…what are we missing?
...e arbitrary bytes. You need to use something like a base-n (commonly: base-64) encode. This transfers
arbitrary bytes to a formatted string
a formatted string to the original bytes
look at Convert.ToBase64String and Convert. FromBase64String
...
detach all packages while working in R
...; sessionInfo()
R version 2.13.1 Patched (2011-09-13 r57007)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_GB.utf8 LC_NUMERIC=C
[3] LC_TIME=en_GB.utf8 LC_COLLATE=en_GB.utf8
[5] LC_MONETARY=C LC_MESSAGES=en_GB.utf8
[7] LC_PAPER=e...
What are allowed characters in cookies?
...hmed Ashour
4,1191010 gold badges2828 silver badges4646 bronze badges
answered Dec 28 '09 at 12:54
bobincebobince
484k9999 gold ba...
Remap values in pandas column with a dict
... @PrestonH It works perfectly for me. Running: '3.6.1 |Anaconda custom (64-bit)| (default, May 11 2017, 13:25:24) [MSC v.1900 64 bit (AMD64)]'
– Dan
Dec 6 '17 at 9:47
...
Convert DataFrame column type from string to datetime, dd/mm/yyyy format
...pd.Series(['05/23/2005']))
Out[11]:
0 2005-05-23 00:00:00
dtype: datetime64[ns]
You can pass a specific format:
In [12]: pd.to_datetime(pd.Series(['05/23/2005']), format="%m/%d/%Y")
Out[12]:
0 2005-05-23
dtype: datetime64[ns]
...
Why is division in Ruby returning an integer instead of decimal value?
...o learn what works best. Here's the benchmark I put together: require 'base64';require 'zlib';puts Zlib.inflate(Base64.decode64("eJxlkMEOwiAQRO98hekFuGzxQEwPXvwR01ZqiYHqBk2Tln8XDlWgnDbM25nJonq9NaoD7ZTtR9PigxK09zM7AkgRHieXTYHOsBNf1nklM6B6TuhYpdp+rPgSdiCOi/d/kQ71QBOtAVFLEDly05+UYQ2H+MckL6z0zioDdJG1S9K...
How can bcrypt have built-in salts?
... the salt and the cipher text, concatenated and encoded in a modified Base-64. The first 22 characters decode to a 16-byte value for the salt. The remaining characters are cipher text to be compared for authentication.
This example is taken from the documentation for Coda Hale's ruby implementatio...