大约有 34,900 项符合查询结果（耗时：0.0474秒） [XML]
Iterating through a list in reverse order in java
I'm migrating a piece of code to make use of generics. One argument for doing so is that the for loop is much cleaner than keeping track of indexes, or using an explicit iterator.
...
How to convert linq results to HashSet or HashedSet
...
I don't think there's anything built in which does this... but it's really easy to write an extension method:
public static class Extensions
{
public static HashSet<T> ToHashSet<T>(
this IEnumerable<T> sour...
Optimising Android application before release [closed]
...
At some point you are going to get to the point where using known tricks will hit their limits. The best thing to do at this point is profile your code and see what areas are the bottle-necks based on your specific requirements.
Investigating RAM usage using MAT and Using Traceview: ...
RESTful URL design for search
I'm looking for a reasonable way to represent searches as a RESTful URLs.
12 Answers
1...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...
if (is_dir($dir. DIRECTORY_SEPARATOR .$object) && !is_link($dir."/".$object))
rrmdir($dir. DIRECTORY_SEPARATOR .$object);
else
unlink($dir. DIRECTORY_SEPARATOR .$object);
}
}
rmdir($dir);
}
}
...
Sending a notification from a service in Android
I have a service running, and would like to send a notification. Too bad, the notification object requires a Context , like an Activity , and not a Service .
...
What is the order of precedence for CSS?
...) overrides css rules in style tag and css file
a more specific selector takes precedence over a less specific one
rules that appear later in the code override earlier rules if both have the same specificity.
A css rule with !important always takes precedence.
In your case its rule 3 that applies....
How to vertically align an image inside a div
...
The only (and the best cross-browser) way as I know is to use an inline-block helper with height: 100% and vertical-align: middle on both elements.
So there is a solution: http://jsfiddle.net/kizu/4RPFa/4570/
.frame {
height: 25px; /* Equals maximum image ...
How to increment datetime by custom months in python without using library [duplicate]
...
Scott Stafford
38.9k2020 gold badges110110 silver badges158158 bronze badges
answered Nov 9 '10 at 6:41
Dave WebbDave We...
How do you run a single test/spec file in RSpec?
...ingle spec file's tests — for the one file I'm editing, for example. rake spec executes all the specs. My project is not a Rails project, so rake spec:doc doesn't work.
...