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How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...the bitness of this JVM with:
System.getProperty("sun.arch.data.model");
Possible results are:
"32" – 32-bit JVM
"64" – 64-bit JVM
"unknown" – Unknown JVM
As described in the HotSpot FAQ:
When writing Java code, how do I distinguish between 32 and 64-bit operation?
There's no public API th...
Difference between \n and \r?
...code for end-of-line, \r means nothing special
as a consequence, in C and most languages that somehow copy it (even remotely), \n is the standard escape sequence for end of line (translated to/from OS-specific sequences as needed)
in old Mac systems (pre-OS X), \r was the code for end-of-line instea...
Subprocess changing directory
...change another process's working directory (again, at least on a UNIX-like OS, but as well on Windows), this call will have the subshell change its dir and exit immediately.
What you want can be achieved with os.chdir() or with the subprocess named parameter cwd which changes the working directory ...
How do I determine file encoding in OS X?
...
I was assuming that OSX stored the encoding as meta-data. I understood the file contents were just a cluster of bits and had no inherent encoding.
– James A. Rosen
Feb 12 '09 at 3:15
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Are there any HTTP/HTTPS interception tools like Fiddler for mac OS X? [closed]
... would like to know if there are any applications like fiddler but for mac OS X, as I need to debug some requests from web applications in Mac OS X. I used to do it with fiddler on Windows and would love to have this tool available on Mac as well.
...
How to determine whether a given Linux is 32 bit or 64 bit?
...you wether the CPU is 64bit. As I understand the question it was about the OS. uname -m only tells me "i686".
– Kim Stebel
Aug 23 '09 at 16:40
3
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Python: How to create a unique file name?
... edited Aug 6 '17 at 2:45
Kostanos
7,36633 gold badges3737 silver badges5858 bronze badges
answered Jun 2 '10 at 21:12
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How to terminate a Python script
...ons specified by finally clauses
of try statements are honored, and it is possible to intercept the
exit attempt at an outer level.
The optional argument arg can be an integer giving the exit status
(defaulting to zero), or another type of object. If it is an integer,
zero is considered “success...
Receiver not registered exception error?
...lready unregistered (probably in the code that you didn't include in this post) or was not registered, then call to unregisterReceiver throws IllegalArgumentException. In your case you need to just put special try/catch for this exception and ignore it (assuming you can't or don't want to control nu...
Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个重要支柱：UNIX 操作系统、MINIX 操作系统、GNU 计划、POSIX 标准和Internet 网络。
下面主要根据这五个基本线索来追寻一下Linux 的开发历程，它的酝酿过程，最初的发展经历。首先分别介绍其中的四个基本要素(UNIX、MINIX、G...