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how to find host name from IP with out login to the host
...h DNS server(s), so it's common to see the same hostnames in a DHCP client least table and in the DNS server's A (or AAAA for IPv6) records. Again, this is usually done as part of zeroconf.
Also note that just because a DHCP lease exists for a client, doesn't mean it's still being used.
NetBIOS fo...
Fastest way to determine if an integer's square root is an integer
... out a method that works ~35% faster than your 6bits+Carmack+sqrt code, at least with my CPU (x86) and programming language (C/C++). Your results may vary, especially because I don't know how the Java factor will play out.
My approach is threefold:
First, filter out obvious answers. This includ...
How to auto-remove trailing whitespace in Eclipse?
...all the code styles automatically include removing trailing whitespace. At least I couldn't find a setting for this in Formatter configuration, and it worked out of the box for built-in Java Conventions, Eclipse, Eclipse 2.1 styles, as well as GoogleStyle.
When using this set-up, you obviously need...
LINQ: Not Any vs All Don't
...t you can have bugs from assuming "all the items are..." means there is at least one item that is at least one item that fulfils the test, since the "all the items..." is always true for the empty set, I don't dispute that at all. I added though that the same problem can happen with assuming "none o...
How to name factory like methods?
...ey may be "de facto standards". I'd choose one and use it consistently at least within a project. (Looking at my own current project, I seem to use "make". I hope I'm consistent...)
Avoid "build" because it fits better with the Builder pattern and avoid "produce" because it evokes Producer/Consu...
Java Naming Convention with Acronyms [closed]
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@GregBrown: In fact it is more practical at least in Eclipse, where the camel-case recognition is a pain with acronyms: i.e. with DvdPlayer you can type "DP" and press Ctrl+1 to get the choice to select DvdPlayer, but if you had DVDPlayer you would have to type "DVDP"....
How can I group data with an Angular filter?
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This is pretty neat actually! Least amount of code.
– Benny Bottema
Jul 7 '14 at 9:35
3
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I want to execute shell commands from Maven's pom.xml
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I'd like to add that this doesn't work with (at least) version 1.5.0 of the plugin, since <configuration /> should follow after <executions /> and not be placed therein. Took me quite a while to find this simple syntactical mistake. Maven's error output is real...
Creating an abstract class in Objective-C
...tract methods via a category (i.e. at runtime). You can force a user to at least override certain methods by raising an exception in those methods implementation in your abstract class:
[NSException raise:NSInternalInconsistencyException
format:@"You must override %@ in a subclass", NS...
Is there a portable way to get the current username in Python?
... username in Python (i.e., one that works under both Linux and Windows, at least). It would work like os.getuid :
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