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Recommended way to get hostname in Java
...iable through System.getenv()
Execute hostname and read the response
Read /etc/hostname (to do this I'm executing cat since the snippet already contains code to execute and read. Simply reading the file would be better, though).
The code:
public static void main(String[] args) throws IOException...
Why does ReSharper tell me “implicitly captured closure”?
... use.
The compiler generates a class for both lambda expressions and puts all variables in that class which are used in the lambda expressions.
So in my example g and i are held in the same class for execution of my delegates. If g is a heavy object with a lot of resources left behind, the garbage...
Developing cross platform mobile application [closed]
...ailable:
Android, iOS, Moblin, Windows mobile 7, RIM, symbian, bada, maemo etc.
5 Answers
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Python read-only property
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Generally, Python programs should be written with the assumption that all users are consenting adults, and thus are responsible for using things correctly themselves. However, in the rare instance where it just does not make sens...
Importing from builtin library when module with same name exists
Situation:
- There is a module in my project_folder called calendar
- I would like to use the built-in Calendar class from the Python libraries
- When I use from calendar import Calendar it complains because it's trying to load from my module.
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Why are Python's 'private' methods not actually private?
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The name scrambling is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's not designed to prevent deliberate access from outside.
For example:
>>> class Foo(object):
... def __init__(self):
... self....
Copy multiple files in Python
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If you don't want to copy the whole tree (with subdirs etc), use or glob.glob("path/to/dir/*.*") to get a list of all the filenames, loop over the list and use shutil.copy to copy each file.
for filename in glob.glob(os.path.join(source_dir, '*.*')):
shutil.copy(filename, de...
How to print to console in pytest?
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Using -s option will print output of all functions, which may be too much.
If you need particular output, the doc page you mentioned offers few suggestions:
Insert assert False, "dumb assert to make PyTest print my stuff" at the end of your function, and you...
How to Select Columns in Editors (Atom,Notepad++, Kate, VIM, Sublime, Textpad,etc) and IDEs (NetBean
How to select columns in Editors and IDEs to columnar delete, insert or replace some characters ?
21 Answers
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C++ compiling on Windows and Linux: ifdef switch [duplicate]
... @MestreLion The Predef project has since been absorbed into Boost, but all the macros are still listed in the documentation here: boost.org/doc/libs/release/libs/predef/doc/html/index.html
– rubenvb
Mar 26 '16 at 12:43
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