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Recommended way to get hostname in Java
...is possible for many reasons. Generally, software should get the hostname from the user in a config file, that way, it is always the correct hostname. You could use InetAddress.getLocalhost().getHostName() as a default if the user does not provide a value.
– Greg
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Ansible: Set variable to file content
...p will work with local files, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
contents: "{{ lookup('file', '/etc/foo.txt') }}"
tasks:
- debug: msg="the value of foo.txt is {{ contents }}"
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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
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The HTTP_HOST is obtained from the HTTP request header and this is what the client actually used as "target host" of the request. The SERVER_NAME is defined in server config. Which one to use depends on what you need it for. You should now however rea...
How do you render primitives as wireframes in OpenGL?
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From http://cone3d.gamedev.net/cgi-bin/index.pl?page=tutorials/ogladv/tut5
// Turn on wireframe mode
glPolygonMode(GL_FRONT, GL_LINE);
glPolygonMode(GL_BACK, GL_LINE);
// Draw the box
DrawBox();
// Turn off wireframe mode
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jQuery .hasClass() vs .is()
... a preferred method of determining whether an element is assigned a class, from a performance standpoint?
4 Answers
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Force Git to always choose the newer version during a merge?
...the version of the branch being merged, using git merge branch -X theirs.
From man git-merge:
ours:
This option forces conflicting hunks to be auto-resolved cleanly by favoring our version. Changes from the other tree that do not
conflict with our side are reflected to the merge result. ...
Variable declared in for-loop is local variable?
...uter i by a different name.
N.B:
Please note, C#'s scoping rules differ from C++'s scoping rules. In C++ variables are only in scope from where they are declared until the end of the block. Which would make your code a valid construct in C++.
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Android Preferences: How to load the default values when the user hasn't used the preferences-screen
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this question is similar to mine:
initialize-preferences-from-xml-in-main-activity
Just use this code in onCreate method:
PreferenceManager.setDefaultValues(this, R.xml.preference, false);
It will load your preferences from XML, and last parameter (readAgain) will guarantee that u...
Where can I download Spring Framework jars without using Maven?
...s list of mirrors current
I found this maven repo where you could download from directly a zip file containing all the jars you need.
http://maven.springframework.org/release/org/springframework/spring/
http://repo.spring.io/release/org/springframework/spring/
Alternate solution: Maven
The solutio...
Sort Dictionary by keys
...dictionary.keys).sorted(<) // ["A", "D", "Z"]
EDIT:
The sorted array from the above code contains keys only, while values have to be retrieved from the original dictionary. However, 'Dictionary' is also a 'CollectionType' of (key, value) pairs and we can use the global 'sorted' function to get...