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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
(Wasn't sure if this should go on SU... migration is certainly an option, but more programmers read questions here, so here goes).
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builder for HashMap
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Since Java 9 Map interface contains:
Map.of(k1,v1, k2,v2, ..)
Map.ofEntries(Map.entry(k1,v1), Map.entry(k2,v2), ..).
Limitations of those factory methods are that they:
can't hold nulls as keys and/or values (if you ne...
What is Rack middleware?
What is Rack middleware in Ruby? I couldn't find any good explanation for what they mean by "middleware".
9 Answers
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PowerShell says “execution of scripts is disabled on this system.”
I am trying to run a cmd file that calls a PowerShell script from cmd.exe , but I am getting this error:
32 Answers
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Using npm behind corporate proxy .pac
... through npm but our corporate proxy configuration is a .pac file (i'm on windows)
25 Answers
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Detecting that the browser has no mouse and is touch-only
I'm developing a webapp (not a website with pages of interesting text) with a very different interface for touch (your finger hides the screen when you click) and mouse (relies heavily on hover preview).
How can I detect that my user has no mouse to present him the right interface? I plan to leave a...
Why does calling a method in my derived class call the base class method?
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There's a difference between new and virtual/override.
You can imagine, that a class, when instantiated, is nothing more than a table of pointers, pointing to the actual implementation of its methods. The following image should visualize this pretty well:
Now there are different ways, a m...
Why are static variables considered evil?
...ho is new to the corporate world. Recently I've developed an application using Groovy and Java. All through the code I wrote used quite a good number of statics. I was asked by the senior technical lot to cut down on the number of statics used. I've googled about the same, and I find that many pro...
C# declare empty string array
I need to declare an empty string array and i'm using this code
9 Answers
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How can I get the current PowerShell executing file?
Note: PowerShell 1.0
I'd like to get the current executing PowerShell file name. That is, if I start my session like this:
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