大约有 43,000 项符合查询结果（耗时：0.0709秒） [XML]
Random number generator only generating one random number
...
Every time you do new Random() it is initialized using the clock. This means that in a tight loop you get the same value lots of times. You should keep a single Random instance and keep using Next on the same instance.
//Function to get a random n...
Best way to randomize an array with .NET
What is the best way to randomize an array of strings with .NET? My array contains about 500 strings and I'd like to create a new Array with the same strings but in a random order.
...
How to get current foreground activity context in android?
... still return a small subset of its data: at least the caller's own tasks, and possibly some other tasks such as home that are known to not be sensitive.
share
|
improve this answer
|
...
How to determine height of UICollectionView with FlowLayout
I've got an UICollectionView with an UICollectionViewFlowLayout , and i want to calculate its content size (for return in intrinsicContentSize needed for adjusting its height via AutoLayout).
...
Root user/sudo equivalent in Cygwin?
...r on SuperUser:
I found the answer on the Cygwin mailing list. To run command with elevated privileges in Cygwin, precede the command with cygstart --action=runas like this:
$ cygstart --action=runas command
This will open a Windows dialogue box asking for the Admin password and run the command ...
Remove the last line from a file in Bash
...sed.
MacOS:
On Mac OS X (as of 10.7.4), the equivalent of the sed -i command above is
sed -i '' -e '$ d' foo.txt
share
|
improve this answer
|
follow
|
...
What is global::?
...as an auto-generated class with a class prefixed with the global namespace and the class was called Foo I had a class I had created which also was called Foo also with no namespace?
– Sachin Kainth
Feb 22 '13 at 11:07
...
How to access the correct `this` inside a callback?
I have a constructor function which registers an event handler:
11 Answers
11
...
How to use WeakReference in Java and Android development?
...
Using a WeakReference in Android isn't any different than using one in plain old Java. Here is a great guide which gives a detailed explanation: Understanding Weak References.
You should think about using one whenever you need a reference to an obj...
How to find/identify large commits in git history?
...300 MB git repo. The total size of my currently checked-out files is 2 MB, and the total size of the rest of the git repo is 298 MB. This is basically a code-only repo that should not be more than a few MB.
...