大约有 43,000 项符合查询结果（耗时：0.0452秒） [XML]
How to maintain a Unique List in Java?
... no duplicate elements. More formally, sets contain no pair of elements e1 and e2 such that e1.equals(e2), and at most one null element. As implied by its name, this interface models the mathematical set abstraction.
Note: Great care must be exercised if mutable objects are used as set elements...
How to round an image with Glide library?
... The glide drawables are not BitmapDrawables. They are transitiondrawables and glidedrawables which crossfade from the placeholder to the real image. The RoundedBitmapDrawable cannot handle that.
– Greg Ennis
Apr 22 '16 at 14:31
...
Calculating frames per second in a game
...asiest way is to take the current answer (the time to draw the last frame) and combine it with the previous answer.
// eg.
float smoothing = 0.9; // larger=more smoothing
measurement = (measurement * smoothing) + (current * (1.0-smoothing))
By adjusting the 0.9 / 0.1 ratio you can change the 'tim...
Histogram using gnuplot?
...already has properly binned data. Is there a way to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?
...
Is there an easy way to return a string repeated X number of times?
...t a certain number of indentations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example:
...
How to use WinForms progress bar?
...groundWorker. If you have a loop that large in your WinForm it will block and your app will look like it has hanged.
Look at BackgroundWorker.ReportProgress() to see how to report progress back to the UI thread.
For example:
private void Calculate(int i)
{
double pow = Math.Pow(i, i);
}
pri...
How do you create a static class in C++?
...tax error. The static keyword should only be used in the class definition, and not in the method definition.
– andrewrk
Aug 13 '08 at 18:02
93
...
PHP's array_map including keys
...er call to array_map therefore produces an array of arrays. This then gets converted back to a single-dimension array by array_column.
Usage
$ordinals = [
'first' => '1st',
'second' => '2nd',
'third' => '3rd',
];
$func = function ($k, $v) {
return ['new ' . $k, 'new ' . $v]...
Java Generics (Wildcards)
...
In your first question, <? extends T> and <? super T> are examples of bounded wildcards. An unbounded wildcard looks like <?>, and basically means <? extends Object>. It loosely means the generic can be any type. A bounded wildcard (<? ext...
How to pass html string to webview on android
...
I was using some buttons with some events, converted image file coming from server.
Loading normal data wasn't working for me, converting into Base64 working just fine.
String unencodedHtml ="<html><body>'%28' is the code for '('</body></html>"...