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Integer.toString(int i) vs String.valueOf(int i)
...cal thing, but it is more useful for a developer to use the method valueOf from the String class than from the proper type, as it leads to fewer changes for us to make.
Sample 1:
public String doStuff(int num) {
// Do something with num...
return String.valueOf(num);
}
Sample2:
public ...
How can we programmatically detect which iOS version is device running on? [duplicate]
...n't handle well minor versions, it's sufficient if you need to recognize 5 from 6, but not 5.0.1 from 5.1.0
– Marek Sebera
Apr 4 '13 at 7:43
3
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Pretty graphs and charts in Python [closed]
... a Matlab-style interactive API.
Chaco is a more modern plotting library from the folks at Enthought. It uses Enthought's Kiva vector drawing library and currently works only with Wx and Qt with OpenGL on the way (Matplotlib has backends for Tk, Qt, Wx, Cocoa, and many image types such as PDF, EPS...
why is plotting with Matplotlib so slow?
...quite disappointed with the performance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
...
Measuring text height to be drawn on Canvas ( Android )
...he next section.
Paint.FontMetrics
You can calculate the hight of the font from the font metrics. The height is always the same because it is obtained from the font, not any particular text string.
Paint.FontMetrics fm = mTextPaint.getFontMetrics();
float height = fm.descent - fm.ascent;
The baseli...
Add .gitignore to gitignore
...ignore file's purpose is to prevent everyone who collaborates on a project from accidentally commiting some common files in a project, such as generated cache files. Therefore you should not ignore .gitignore, since it's supposed to be included in the repository.
If you want to ignore files in just...
What do the following phrases mean in C++: zero-, default- and value-initialization?
...fication). See Kirill V. Lyadvinsky's answer for the definitions straight from the standard.
See this previous answer about the behavior of operator new for details on the the different behavior of these type of initialization and when they kick in (and when they differ from c++98 to C++03):
Do ...
Using MVC HtmlHelper extensions from Razor declarative views
...not load type 'System.Web.WebPages.Instrumentation.InstrumentationService' from assembly 'System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'." when hovering @using System.Web.Mvc. Any ideas?
– JoeBrockhaus
How to rename files and folder in Amazon S3?
...d it works:
aws s3 --recursive mv s3://<bucketname>/<folder_name_from> s3://<bucket>/<folder_name_to>
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How to SSH to a VirtualBox guest externally through a host? [closed]
...Guest port", insert 22. Everything else of the rule can be left blank.
or from the command line
VBoxManage modifyvm myserver --natpf1 "ssh,tcp,,3022,,22"
where 'myserver' is the name of the created VM. Check the added rules:
VBoxManage showvminfo myserver | grep 'Rule'
That's all! Please be s...