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Assigning variables with dynamic names in Java
...lt;Integer>();
for (int i = 1; i < 4; i++) {
n.add(5);
}
Map<String, Integer> n = new HashMap<String, Integer>();
for (int i = 1; i < 4; i++) {
n.put("n" + i, 5);
}
It is possible to use reflection to dynamically refer to variables that have been declared in the sou...
Django: Display Choice Value
...ing your information via JSON (for instance in a pagination scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
...
Collections.emptyList() returns a List?
...arameter, and have your code behave as expected, like this:
public Person(String name) {
this(name,Collections.<String>emptyList());
}
Now when you're doing straight assignment, the compiler can figure out the generic type parameters for you. It's called type inference. For example, if ...
Regex for string contains?
What is the regex for simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language.
...
How to check postgres user and password? [closed]
...
How do you then access this with a URL string? For example, if you have an app that connects to your database, do you need to enter your username and password in the URL?
– Maiya
May 22 at 23:59
...
JavaScript: How to find out if the user browser is Chrome?
...ut guess what, IE11 now returns undefined again. IE11 also returns a empty string "" for window.navigator.vendor.
I hope this helps!
UPDATE:
Thank you to Halcyon991 for pointing out below, that the new Opera 18+ also outputs to true for window.chrome. Looks like Opera 18 is based on Chromium 31....
What is the difference between synchronous and asynchronous programming (in node.js)
...ile Node itself is single threaded, there are some task that can run in parallel. For example, File System operations occur in a different process.
That's why Node can do async operations: one thread is doing file system operations, while the main Node thread keeps executing your javascript code....
Python data structure sort list alphabetically
... are the very basics of programming in Python.
What you have is a list of strings. You can sort it like this:
In [1]: lst = ['Stem', 'constitute', 'Sedge', 'Eflux', 'Whim', 'Intrigue']
In [2]: sorted(lst)
Out[2]: ['Eflux', 'Intrigue', 'Sedge', 'Stem', 'Whim', 'constitute']
As you can see, words...
Where can I get a “useful” C++ binary search algorithm?
...
I don't really understand your comment, since lower_bound can only be used on sorted data. Complexity is lower than using find (see edit).
– Luc Touraille
Jan 15 '09 at 11:02
...
“User interaction is not allowed” trying to sign an OSX app using codesign
...or the context is belongs
to. See auditon(2) for details.
UserName <string>
This optional key specifies the user to run the job as. This key is only
applicable for services that are loaded into the privileged system
domain.
GroupName <string>
This optional key specifies...