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How can I hash a password in Java?
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You can actually use a facility built in to the Java runtime to do this. The SunJCE in Java 6 supports PBKDF2, which is a good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new...
Replacing some characters in a string with another character
...ce each occurrence of x, y, or z with _, giving A__BC___DEF__LMN in your example.
echo "$string" | sed -r 's/[xyz]+/_/g'
would replace repeating occurrences of x, y, or z with a single _, giving A_BC_DEF_LMN in your example.
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How to decompile a whole Jar file? [closed]
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Something like:
jar -xf foo.jar && find . -iname "*.class" | xargs /opt/local/bin/jad -r
maybe?
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Can I Install Laravel without using Composer?
I'd like to know if I can install or use the Laravel PHP framework on any web server without using Composer (PHP package/dependency manager) every time?
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ExpressJS How to structure an application?
...lace for this information.
Express Code Structure
This project is an example of how to organize a medium-sized express.js web application.
Current to at least express v4.14 December 2016
How big is your application?
Web applications are not all the same, and there's not, in my opinion, a ...
How can I count all the lines of code in a directory recursively?
We've got a PHP application and want to count all the lines of code under a specific directory and its subdirectories. We don't need to ignore comments, as we're just trying to get a rough idea.
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Batch Renaming of Files in a Directory
...name(r'c:\temp\xx', r'*.doc', r'new(%s)')
The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension).
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php动态安装mysql扩展错误（ext/mysqlnd/mysqlnd.h: No such file or direc...
php动态安装mysql扩展错误（ext/mysqlnd/mysqlnd.h: No such file or directory）错误如下：In file included from data xingzheng install php-5.5.10 include php Zend zend_compile.h:719, from ...错误如下：
In file included from /data/xingzheng/install/php-5.5.10/include/php/...
Interface or an Abstract Class: which one to use?
Please explain when I should use a PHP interface and when I should use an abstract class ?
11 Answers
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How to debug heap corruption errors?
...ed memory
#undef free
#define free(p) _free_dbg(p, _NORMAL_BLOCK); *(int*)&p = 0x666;
#endif
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