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How to launch an Activity from another Application in Android
...
If you don't know the main activity, then the package name can be used to launch the application.
Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.package.address");
if (launchIntent != null) {
startActivity(launchInte...
Why should I avoid multiple inheritance in C++?
...ly, it was done for bad reasons, and it will blow back in the face of the maintainer.
Summary
Consider composition of features, instead of inheritance
Be wary of the Diamond of Dread
Consider inheritance of multiple interfaces instead of objects
Sometimes, Multiple Inheritance is the right thing. I...
Operator overloading in Java
...an example is worth a thousand arguments. Given m0 as a Matrix and v0, v1, v2, v3, and v4 as Vectors, simply compare how long it takes you to correctly interpret the following mathematical expression m0.transpose().mult(v0.add(v1.mult(v2)).cross(v3)).sub(v4);. Had support for operator overloading be...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...MD5 tests
std::copy memcpy % difference
5.52 5.56 +0.72%
5.56 5.55 -0.18%
5.57 5.53 -0.72%
5.57 5.52 -0.91%
5.56 5.57 +0.18%
5.56 5.57 +0.18%
5.56 5.53 -0.54%
5.53 5.57 +0.72%
5.59...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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MonthYearM..MonthYearN
Oct2001..Jan2002
Oct2001,Nov2001,Dec2001,Jan2002
③ 集成员不放在集定义中，而在随后的数据部分来定义。
例2.2
!集部分;
sets:
students:sex,age;
endsets
!数据部分;
data:
students,sex,age= John 1 16
...
Floating point vs integer calculations on modern hardware
...ype)(rand() % 256)/16 + 1;
Type v1 = (Type)(rand() % 256)/16 + 1;
Type v2 = (Type)(rand() % 256)/16 + 1;
Type v3 = (Type)(rand() % 256)/16 + 1;
Type v4 = (Type)(rand() % 256)/16 + 1;
Type v5 = (Type)(rand() % 256)/16 + 1;
Type v6 = (Type)(rand() % 256)/16 + 1;
Type v7 = (Type)(rand() %...
How to manually create icns files using iconutil?
...ould be stored at 144 pixels per inch while the others should be stored at 72 pixels per inch.
– carmin
Oct 23 '13 at 20:44
...
How to reverse apply a stash?
...ad a reference about un-applying a stash. The excerpt is below.
The newer V2 git man page doesn't include any reference to un-applying a stash but the below still works well
Un-applying a Stash
In some use case scenarios you might want to apply stashed changes, do some work, but then un-apply thos...
How to copy files from 'assets' folder to sdcard?
...ssetManager.list("");
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
if (files != null) for (String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(filename);
...
YouTube API to fetch all videos on a channel
...p;maxResults=20
After that you will receive a JSON with video ids and details, and you can construct your video URL like this:
http://www.youtube.com/watch?v={video_id_here}
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