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Why can't variable names start with numbers?
I was working with a new C++ developer a while back when he asked the question: "Why can't variable names start with numbers?"
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HashMap to return default value for non-found keys?
Is it possible to have a HashMap return a default value for all keys that are not found in the set?
14 Answers
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Creating virtual directories in IIS express
...l directory in IIS express? I know that Cassini can't do this and it would be nice to be able to do this without using a full version of IIS.
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How should I detect unnecessary #include files in a large C++ project?
...hing will compile fine with them removed, and in other cases classes could be forward declared and the #include could be moved to the .cpp file. Are there any good tools for detecting both of these cases?
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Center a popup window on screen?
... opened via javascript window.open function on the center of screen variable to the currently selected screen resolution ?
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Log4net rolling daily filename with date in the file name
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MunMun
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How to connect to Mysql Server inside VirtualBox Vagrant?
I mounted a new VirtualBox Machine with Vagrant, and inside that VM I installed Mysql Server. How can I connect to that server outside the vm? I already forward the port 3306 of the Vagrantfile , but when I try to connect to the mysql server, it`s resposts with the error:
'reading initial communica...
Which annotation should I use: @IdClass or @EmbeddedId
... has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
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filtering NSArray into a new NSArray in Objective-C
I have an NSArray and I'd like to create a new NSArray with objects from the original array that meet certain criteria. The criteria is decided by a function that returns a BOOL .
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Setting Windows PowerShell environment variables
I have found out that setting the PATH environment variable affects only the old command prompt. PowerShell seems to have different environment settings. How do I change the environment variables for PowerShell (v1)?
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