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Java: Clear the console
...ws, here is a clarification:
Runtime.getRuntime().exec("cls");
This command does not work, for two reasons:
There is no executable named cls.exe or cls.com in a standard Windows installation that could be invoked via Runtime.exec, as the well-known command cls is builtin to Windows’ command l...
How to get the first line of a file in a bash script?
... a bash variable the first line of a file. I guess it is with the grep command, but it is any way to restrict the number of lines?
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What's the difference between a Future and a Promise?
What's the difference between Future and Promise ?
They both act like a placeholder for future results, but where is the main difference?
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Error 5 : Access Denied when starting windows service
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I realize this post is old, but there's no marked solution and I just wanted to throw in how I resolved this.
The first Error 5: Access Denied error was resolved by giving permissions to the output directory to the NETWORK SERVICE account.
The second Started and then stopped error ...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
... using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
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Reset CSS display property to default value
...with its default value? For example if I have set it to none in one style, and I want to override it in a different with its default.
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How to get 0-padded binary representation of an integer in java?
...umbers to format, you can convert your binary representation to BigInteger and then format that with leading zeros, but this is very costly at runtime, as in:
String.format("%016d", new BigInteger(Integer.toBinaryString(1)))
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Clang vs GCC for my Linux Development project
I'm in college, and for a project we're using C. We've explored GCC and Clang, and Clang appears to be much more user friendly than GCC. As a result, I'm wondering what the advantages or disadvantages are to using clang, as opposed to GCC, for developing in C and C++ on Linux?
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Nginx 403 forbidden for all files
.../demo, etc. for www-data x access. My guess is that /home is probably 770 and www-data can't chdir through it to get to any subdir. If it is, try chmod o+x /home (or whatever dir is denying the request).
EDIT: To easily display all the permissions on a path, you can use namei -om /path/to/check
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Where are static methods and static variables stored in Java?
...stance related).
Update for clarification:
Note that only the variables and their technical values (primitives or references) are stored in PermGen space.
If your static variable is a reference to an object that object itself is stored in the normal sections of the heap (young/old generation or...