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How to access random item in list?
...a random number with the maximum of the number of items in the ArrayList:
int r = rnd.Next(list.Count);
Display the string:
MessageBox.Show((string)list[r]);
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how to reference a YAML “setting” from elsewhere in the same YAML file?
...n can have any number of elements of any data type, as long as they can be converted to string, so !join [*a, "/", *b, "/", *c] does what you would expect.
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Xcode without Storyboard and ARC
... is possible to grab the old Xcode 4 application templates (XML files) and convert them to Xcode 5. That way, you get the old templates back that let you choose whether you want storyboards or not.
I wrote a script that does all that work for you: https://github.com/jfahrenkrug/Xcode4templates
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剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...、栈之类的。记住，这些段只是简单的内存地址范围，与Intel处理器的段没有关系。不管怎样，下面是一个Linux进程的标准的内存段布局：
当计算机开心、安全、可爱、正常的运转时，几乎每一个进程的各个段的起始...
OnItemCLickListener not working in listview
... can also set this programatically with listView.setDescendantFocusability(int focus); where focus is one of ViewGroup.FOCUS_BEFORE_DESCENDANTS, ViewGroup.FOCUS_AFTER_DESCENDANTS or ViewGroup.FOCUS_BLOCK_DESCENDANTS
– Max Worg
Jan 31 '15 at 13:03
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Google Maps v2 - set both my location and zoom in
...e zoom in and go to my location) in one google map?
From a coding standpoint, you would do them sequentially:
CameraUpdate center=
CameraUpdateFactory.newLatLng(new LatLng(40.76793169992044,
-73.98180484771729));
CameraUpdate zoom=C...
Multiline strings in VB.NET
... begin with $ and you need to take care of ", { and } contained inside – convert them into "", {{ or }} respectively.
Here you can see actual syntax highlighting of interpolated parts of the above code example:
If you wonder if their recognition by the Visual Studio editor also works with refacto...
Formatting Phone Numbers in PHP
I am working on an SMS app and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database .
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Razor view engine, how to enter preprocessor(#if debug)
...see the es6-errors while developing) and in release I want to use the auto-converted non-es6-javascript (cuz IE11 doesn't know es6). this is a great solution for me.
– Matthias Burger
Sep 13 '19 at 7:52
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How do I check (at runtime) if one class is a subclass of another?
...tion trying to figure out how to detect if my numpy dtype is a float or an int for an image processing application. If it's a float, the convention is to normalize between 0.0 and 1.0, if it's int then the convention is 0 to 255. I could go through all sorts of contortions to try and get the image...